Author Archives: GCSDev

Putting on Airs: Tillandsias

Looking for something easy to grow? Tillandsias should be on the top of your list. Tillandsia is the largest genus in the Bromeliad family with over 650 species that vary in color, size, texture and shape. In their native habitat, Tillandsias attach themselves to trees and rocks using their roots. They derive the nutrients and water they need from the air, hence the common name “air plant.” And like their name implies, no soil is necessary for a beautiful, thriving specimen! This versatile houseplant is not fussy, and when given minimal care, will adapt to most home and office environments.

About Tillandsias

Tillandsias are evergreen flowering perennials, and their native range spreads from the southeastern United States to Central and South America. While they are often associated with tropical regions, these diverse plants can also be found in deserts, high mountain ranges and rocky habitats.

It is a common misconception that these are rootless plants – in fact, their roots are critical to serve as anchors and keep the plants stable, though the roots do not absorb moisture or nutrition like other plants. Instead, these plants absorb all they need through their foliage.

Caring for Tillandsias

These delicate plants are easy to care for, but there are some tricks necessary to keep them healthy and looking their very best.

  • Light
    Place your Tillandsias where they will receive plenty of light but not direct sunlight. Direct sun will dry out the leaves very quickly and can cause dehydration and wilting. Home or office fluorescent lighting works just fine.
  • Temperature
    Typical indoor temperatures are perfectly suitable for Tillandsias, and a range of 50-90 degrees Fahrenheit is ideal.
  • Water
    Once a month, soak your air plant in water for about 20 minutes. If the plant is flowering, a delicate rinse would be more appropriate so that the bloom is not damaged. When through soaking, shake off the excess water from the plant and place in an area with good air circulation so it can dry easily. In between soaks, spritz your Tillandsias 1-2 times per week with clean water from a spray bottle. Indoor heat and air conditioning rob moisture from the air. If your air plant leaves start to wrinkle or roll, this is a sign of dehydration. Give them a good soak and spritz more frequently.
  • Pruning
    It is not unusual for the outer leaves of an air plant to dry out and turn brown, and these spent leaves can simply be removed. If leaf tips dry a bit and turn brown, cut off the tip and continue with regular care. The plant will grow and look just fine.

One final note, Tillandsias have beautiful brilliant blooms but only bloom once in their lifetime. Depending on the species, the bloom may last several days to several months. Why not try several different Tillandsia varieties so you can experience these amazing blooms?

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Battling the Bugs of Summer

In the summer months, insects can take their toll on your plants if you are not on the alert for problems. If the right product is used at the right time and under the right conditions, however, pesticides can be reduced to a minimum and your plants will be well-protected.

Organic Products

Apply organic products early in the morning when bugs are eating. To stop insect damage, the spray must be applied to the insect itself or sometimes to where the bug is eating. The entire plant must often be sprayed to keep the pests from moving on to untreated areas. Organic controls include insecticidal soap, Bonide All Season Spray (horticultural oil), Captain Jack’s Dead Bug Brew, tobacco dust, bacillus thuringiensis (Bt), rotenone and pyrethrin sprays.

Contact Products

Inorganic in composition, these insecticides must be applied either to the insect or the leaf where the pest is feeding. Apply in the morning for best results, and as with the organic controls, soak the entire plant so the insects do not find a safer spot to nibble. Contact pesticides include Malathion and Sevin.

Systemic Products

Systemic insecticides circulate to all parts of the plant. Therefore, if you are only able to spray part of a shrub, the product will move to all leaves within 24 hours to control feeding insects for about two weeks. Systemics are best applied in the evenings when there is no chance of rain and sprinklers will not be used. The product will be absorbed only as long as the leaf stays wet. When the leaf dries by mid-morning, the product is then moved through the entire plant when the insects resume feeding. Systemic insecticides available to the homeowner include Bonide Systemic Insect Spray, Ortho Systemic Insecticide and Bayer Season-Long Tree & Shrub.

Not sure how to deal with your pests and unwanted insects? This handy chart can help!

Environmentally Friendly Controls for Common Garden Pests

 

Pest Type

Control Methods

Ants & Cockroaches Concern Home Pest Control, Diatomaceous Earth, Bonide Eight, Bioganic Spray & Dust, Garlic Barrier
Aphids Insecticidal Soap, Pyrethrin, Bonide All-Season Spray, Bonide Eight, Rotenone, Hot Pepper Wax, Neem Oil, Garlic Barrier
Predator: Ladybugs, Praying Mantis
Caterpillars (Tomato Hornworm, Cabbage Looper, etc.) Captain Jack’s Dead Bug Brew, Bt (Bacillus Thuringinensis), Dipel Dust, Bonide Eight, Neem Oil
Predator: Trichogramma, Praying Mantids
Fleas Diatomaceous Earth, Concern Home Pest Control, Bonide Eight
Predator: Beneficial Nematodes
Japanese Beetles Beetle Traps, Neem Oil, Schultz Expert Gardener, Pyrethrin, Bonide Eight
Predator: Praying Mantids, Beneficial Nematodes for grub stage control
Lacebugs Hot Pepper Wax, Insecticidal Soap
Mealy Bugs Insecticidal Soap, Pyrethrin, Bonide All-Season Spray, Pyrethrin, Bonide Eight
Predators: Crytpolnemus or green lacewing
Mites Captain Jack’s Dead Bug Brew, Insecticidal Soap, Bonide All-Season Spray, Pyrethrin, Hot Pepper Wax, Garlic Barrier, Neem Oil
Mosquitoes Pyrethrin, Mosquito Bits, Mosquito Dunks (pond control)
Scale Hot Pepper Wax, Bonide All-Season Spray, Insecticidal Soap, Bonide Eight
Predator: Green lacewing
Slugs Concern Slug Stop, Monterey Sluggo
Predator: Birds
Thrips Captain Jack’s Dead Bug Brew, Insecticidal Soap, Bonide All-Season Spray, Pyrethrin, Hot Pepper Wax, Garlic Barrier, Neem Oil
Whiteflies Insecticidal Soap, Pyrethrin, Repel M Sticky Tape, Safers or Tanglefoot Sticky Whitefly Trap, Bonide Eight, Garlic Barrier
Predators: lady bugs, encarsia formosa or lace wings

 

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Choosing Evening Plants for Fragrance, Color and More

Plants don’t have to be hidden away at night, and there are many different plants that can be dramatic in the evening or well after dark. While the most obvious way to enhance the darkness is to use flowers that are light or white in color, you can also add plants with fragrant flowers or foliage. And, typically, evening bloomers often have a strong fragrance to attract night flying moth pollinators. Popular plants that thrive in evening gardens include…

Annuals and Tropicals

  • Allysum (Lobularia maritime): This fragrant, sweet-smelling annual grows easily to form a mat of small, white, light pink or purple flowers and grows 2-6″. Plant or sow seeds in full sun.
  • Heliotrope (Heliotropium arborescens): Look for the white-flowered form for the best evening visibility. It is not as showy as the popular dark violet version, but it’s more fragrant and will be more visible in darker lighting.
  • Licorice Plant (Helichrysum petiolare): Small, round, woolly leaves in silvery grey drape well in hanging baskets and can be very showy at night.
  • Jasmine (Jasmine officinale): This white-flowered jasmine is a vigorous twining shrub producing very fragrant flowers, attracting moths and glowing under moonlight.
  • Moonflower (lpomoea alba): Easy to grow, this annual has large, white, pink or purple fragrant blooms that open in early evening and last all night. Heart-shaped leaves make this a great vine to cover a trellis or fence. This fast-grower loves full sun.
  • Stock (Matthiola incana): Many kinds bear fragrant flowers that can add a delicious sensory experience to an evening garden.
  • Tobacco Flower (Nicotiana sylvestris): Long, tubular white flowers are intensely fragrant and dramatically visible even in near-darkness.

Perennials

  • Hosta (Hosta ‘Sum and Substance’): The bright, glossy chartreuse/gold large leaves (10″ across) of this hosta form a mound of brightness in the moonlight.
  • Lamium (Lamium maculatum selections): An excellent ground cover for shade, this plant has leaves of silvery white and green with white, pink or purple blooms.
  • Lavender (Lavandula): Fragrant English lavender (L. angustifolia), French lavender (L. dentata), ‘Provence’ and similar types (L. x intermedia) are the best bets for evening beauty.
  • Evening Primrose (Oenothera fruticosa): Night-flying insects are attracted to the delicate fragrance of this pretty flower. Remaining closed during the day, its petals uncurl at dusk. These drought-tolerant plants are ideal in full sun.
  • Pinks (Dianthus): Many hybrids have lost their delightful clove scent, but others are reliably fragrant. These include cheddar pinks (D. gratianopolitanus); cottage pinks (D. plumarius) and maiden pinks (D. deltoides).
  • Verbena (Verbena bonariensis): Tall, erect stems with clusters of small, purple flowers attract moths at night as well as bees and butterflies during the day. Grow in a sunny spot in moist, well-drained soil.

Bulbs

  • Lilies: Madonna lily (L. candidum), ‘Stargazer’, ‘Casablanca’ and other Oriental hybrids are extremely fragrant and beautiful, even in darker conditions.
  • Tuberose (Polianthes tuberosa): This bulb, treated as an annual, produces exotic, sweet-smelling white flowers.

 Shrubs/Vines

  • Butterfly Bush (Buddleja davidii ‘White Profusion’): This luminous plant has fragrant flowers that make it irresistible to moths. Also try the deep purple ‘Black Knight’ for a dramatic contrast. Plant in a sunny, well-drained location.
  • Daphne (Daphne burkwoodii): ‘Carol Mackie’ has variegated foliage with star-shaped, richly fragrant, pale pink flowers that can glow in moonlight.
  • Japanese Honeysuckle (Lonicera japonica): Either evergreen or deciduous varieties can be a suitable choice for evening interest.
  • Mock Orange (Philadelphus): Most kinds are fragrant, especially sweet mock orange (P. coronarius).
  • Roses (Rosa): Many old roses are fragrant, including the damasks, Bourbons, hybrid perpetuals, Chinas and rugosas, as are many David Austin shrub roses. Choose varieties with white or pale blooms for more evening or nighttime glamour.
  • Summersweet (Clethra alnifolia): This handsome, well-foliaged shrub has a summertime display of fragrant, pinkish-white flower spikes lasting for up to six weeks. It is well-suited for use near water and a good bee plant.
  • Viburnum (Viburnum species): Three selections are especially fragrant and ideal for evening flair: ‘Burkwood Viburnum’ – An upright 8-10’, multi-stemmed shrub that produces a white flower. ‘Korenspice Viburnum’ – With a mature height of 5′ to 8′, the Korenspice has pink to reddish buds that open to fragrant, white flowers. ‘Mohawk Viburnum’ – A cross between Burkwood and Korenspice, the Mohawk displays dark red buds which open to white with red blotched reverse flowers. The flowers have a strong clove fragrance to them.

Herbs

  • Lemon Verbena (Aloysia triphylla): With an oh-so-lemony delightful fragrance, lemon verbena has fragrant, narrow leaves and small white flowers. Leaves are strongest in scent and flavor while the shrub is in bloom, but can be harvested at any time. Plant in a moist sunny location. Unlike many herbs, lemon verbena retains its scent for years when dried.
  • Rosemary (Rosmarinus officinalis). Rosemary’s fragrant flavor is spicy, warm and pungent, reminiscent of pine, balsam and ocean air. There are so many uses for rosemary that no garden should be without this herb. Along a path, rosemary releases its fresh, clean scent when brushed against at any time of day or night. Rosemary can take the heat, and does well against a brick or stone wall or in a pot on a sunny patio or terrace.
  • Scented Geraniums (Pelargonium): Of the many varieties, those with scents of rose, lemon and peppermint are the most fragrant.
  • Pineapple Sage (Salvia elegans): This 3’ evergreen shrub has bright scarlet flowers in late summer and fall.

Adding plants specifically for evening enjoyment can enhance your garden for many hours, and with so many nighttime beauties to choose from, no garden should be without some after-dark drama.

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Crazy for Coneflowers

Beautiful and dependable, Echinacea purpurea, or purple coneflower, is the crowning glory of the summer perennial garden. A member of the Aster family, all Echinacea species are native to North America. The genus Echinacea is derived from the Greek ‘echino’ meaning hedgehog, a reference to the spiny center disc flowers.

Coneflowers are practical as well as gorgeous. They have long been used as an herbal remedy to stimulate the body’s natural immune system. Both plant roots and tops are used in the production of herbal medicines. Echinacea purpurea has traditionally been used for this purpose, but research is being conducted on the nine other species to determine their usefulness for homeopathic treatments.

Cultivating Coneflowers

Coneflowers will thrive in a sunny location, planted in well-drained soil. They are tolerant of nutrient-poor soil, heat and humidity. Echinacea purpurea grows on thick sturdy stems from 3-5 feet tall and generally does not require staking. Coneflowers are long-blooming, the flowers are fragrant and they make a long-lasting cut flower. This is one of the top ten perennials for attracting butterflies to the garden. You may deadhead plants after the blooms have faded to improve their appearance and to encourage a second, but smaller, bloom. You may also leave seed heads in place. In the summer and fall, they attract and provide food for goldfinches and other seed-loving birds. In the winter, the black spent flower heads add ornamental interest as they contrast dramatically with pure white snow.

This perennial is not invasive, but will self-seed if flower heads are left to mature. Cut plants down to the basal foliage, the low growing rosette of leaves, in the spring. Plants should be lifted and divided about every four years or as crowns become crowded.

Where to Place Coneflowers

Purple coneflower is a great addition to the back of any sunny perennial border. Its rose-purple flowers, with their coppery-orange centers, look great with ornamental grasses, Black-Eyed Susan (Rudbeckia) and Sedum ‘Autumn Joy.’ Appropriate usage ideas include: cottage, meadow, prairie, wildflower, native and herb gardens, as well as butterfly gardens and any containers that serve similar purposes.

Favorite Coneflowers

America is having a love affair with Echinacea and several new cultivars are released each year, while popular favorites continue to be top choices.

Popular Echinacea Varieties

  • ‘Baby White Swan’ – Dwarf ‘White Swan’
  • ‘Bright Star’– Petals are pale purple-pink on the edge and darker toward disc
  • ‘Coconut Lime’ – New for 2007, first double white coneflower
  • ‘Doubledecker’ – Unusual two-tiered coneflower with ray petals in disc
  • ‘Fancy Frills’ – Petals are frilled on the edge
  • ‘Fatal Attraction’ – Vivid purple-pink flowers with 2 rows of petals
  • ‘Fragrant Angle’ – Large, fragrant, snow white flowers
  • ‘Green Envy’ – Unusual rounded green petals with magenta veining near the cone
  • ‘Green Eyes’ – Magenta flower with a green center disc
  • ‘Hope’ – Pale pink flower named in honor of a cure for breast cancer
  • ‘Kim’s Knee High’ – Dwarf with recurved ray petals and large orange cone
  • ‘Kim’s Mophead’ – Compact plant with white flowers
  • ‘Magnus’ – 1998 Perennial Plant of the Year, purple-pink flowers, 3’ tall
  • ‘Mars’ – Large orange cones surrounded by brilliant rose-purple petals
  • ‘Merlot’ – Large rose-pink flowers on wine colored, sturdy stems
  • ‘Pink Double Delight’ – Similar to ‘Razzmatazz’ with a more compact habit
  • ‘Razzmatazz’ – Double, bright pink flower on very sturdy stems
  • ‘Ruby Giant’ – Large, rich ruby-pink flowers that are highly fragrant
  • ‘Ruby Star’ – Reddish-purple flowers held horizontally
  • ‘Sparkler’ – Rose-pink flowers, white-splashed variegated foliage
  • ‘Tiki Torch’ – Large, bright orange flowers
  • ‘White Swan’ – White coneflower with downward reflexed petals

Echinacea Big Sky Series

  • ‘After Midnight’ – Dwarf plant with brilliant magenta, highly fragrant blooms
  • ‘Harvest Moon’ – Gold flower with golden-orange cone
  • ‘Summer Sky’ – Bicolor flower, soft peach and rose petals
  • ‘Sundown’ – Russet-orange with a prominent brown central cone
  • ‘Sunrise’ – Lemon-yellow flowers
  • ‘Sunset’ – Orange flowers with prominent brown central cone
  • ‘Twilight’ – Vibrant rose-red with a deep red cone

Echinacea Meadowbrite Series

  • ‘Mango Meadowbrite’ – Mango color, paler than orange meadowbright
  • ‘Orange Meadowbrite’ – Large single blooms of rich sunset orange
  • ‘Pixie Meadowbrite’ – A true dwarf, only 18” high, bright pink flowers

The list that we have provided is not all-inclusive, nor an accurate representation of every coneflower variety we carry. Please stop by often as we continue to provide standard, new and unusual perennials, including many new types of coneflowers.

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Daylilies… Easy to Grow, Fun to Collect!

Few perennials can match the daylily (Hemerocallis) for versatility and durability. One of the most popular perennials, daylilies have become a collector plant for novice and experienced gardeners alike. Thousands of named cultivars are trouble-free to grow and adaptable to many conditions, which makes daylily collecting fun and easy. Although each lily-like flower lasts only one day, there are always more buds to open which provide summer color and a subtly changing garden for many weeks.

Using Daylilies

Just as there are many different daylilies to try, there are many different ways to try them. Plant them individually for a pop of color, or create a mixed border with other plants or multiple daylily types. Daylilies can be a fun surprise when naturalized in a grassy area or grouped in a mass as a groundcover over larger areas. Taller varieties can even become simple screens or create gentle privacy surrounds. The creative gardener may even use multiple daylilies to create fun patterns or pictures in a themed flowerbed.

Daylily Care

Daylilies tolerate dry, poor soil, but perform best and reach their full potential in rich well-drained beds. Different cultivars have different needs for sunlight, moisture and fertilizing, and while these flowers do well even if somewhat neglected, it is best to try to meet their needs so each bloom can flourish. Some will tolerate drought and frost better than others, while certain cultivars need more attention. All are quite low-maintenance, however, and will thrive for years even in marginal conditions.

Popular Daylilies

There are too many daylily types to list – there are more than 35,000 different cultivars – but some tried-and-true selections that are always favorites include…

  • Hyperion – 40” tall, space 18-24” apart. Delightfully fragrant, large, 5” primrose-yellow flowers with a green throat in mid to late summer. Full sun or part shade.
  • Mary Todd – 26” tall, space 24-30” apart. Golden or buff 6-7” flowers on a semi-evergreen foliage. Blooms midseason. Full sun.
  • Stella De’Oro – 12-18” tall, space 18-24” apart. Golden yellow 2-3” flowers with a green throat on a compact plant. Reblooms all summer. Full sun.
  • Joan Senior – 25” tall, space 24-30” apart. Near-white 6” flowers with a green throat on an evergreen plant. Blooms midseason. Full sun.
  • Becky Lynn – 20” tall, space 24” apart. Large, 6” rose-blend flowers with a green throat in a semi-evergreen plant. Blooms midseason, then reblooms. Full sun.
  • Rocket City – 36” tall, space 18-24” apart. Eye-catching, two-tone orange blossoms are up to 6” across. Blooms midseason. Full sun or part shade.

There are always more daylily types to try; come in today to see the latest, hottest, most amazing cultivars of these versatile blooms, and you’ll be eager to add more of them to your landscape.

Daylily Fun Fact:

The American Hemerocallis Society has classified daylilies by flower size. A miniature has flowers less than 3” in diameter, small-flowered cultivars have flowers from 3-4 ½” and large-flowered cultivars have flowers 4 ½” or larger.

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Fabulous Hydrangeas for Show-Stopping Summer Color

Hydrangeas and are widely acclaimed for their large, showy blossoms that lend fabulous color to gardens from mid- to late summer. Their luxuriant dark green foliage offers a striking background to their large round or smooth blossoms. All hydrangeas are deciduous, and it’s a sure sign of spring when their tender green leaves begin to appear. Hydrangeas are spectacular when grown as single specimens and are equally fabulous when planted in mixed shrub borders. Some of our favorites…

  • Climbing Hydrangea – An excellent deciduous vine with glossy leaves and cinnamon colored exfoliating stems. White flowers bloom in early July. Easily climbs on masonry, reaching 10-20’ tall.
  • Oakleaf Hydrangea – An upright, irregular shrub that grows 4-6’ tall. Large leaves have excellent fall color. Creamy white flowers in July. Tolerates shade well.
  • Bigleaf (macrophylla) Hydrangea – Blue or pink flower clusters (5-10” across) appear in August. Flower color depends on the pH of the soil. Acid soils produce blue flowers, whereas alkaline soils produce pink blossoms. In garden settings, their colors can be changed by adding either sulfur or lime, depending on the color you want to achieve. Blossoms are produced on last year’s growth, so prune just after blooming.
  • Pee Gee Hydrangea – A small, low-branched tree that grows 10-15’ and arches under the weight of large flower clusters. White flowers bloom in July, turning pink and then brown with the first frost, holding on through winter. Flowers appear on previous year’s growth, so prune right after flowers start to turn pink.

Mopheads and Lacecaps – Which is Which?

Before you get the urge to dash out and buy the first hydrangeas that catch your eye, it’s wise to learn the difference between “mopheads” and “lacecaps.” As peculiar as these names sound, they truly are the names designated to two cultivar groups of macrophylla hydrangeas, and understanding the difference between them can help you choose the flowers you prefer.

  • Mopheads
    Garden hydrangeas, also known as ‘mopheads,’ feature large round flowerheads resembling pom-poms and bloom from mid- to late summer. Mopheads bloom in solid masses, their clusters often so heavy that they cause their stems to droop and bend with elegant arches.
  • Lacecaps
    Lacecap hydrangeas bear flat round flowerheads with centers of fertile flowers surrounded by outer rings of sterile flowers. The fascinating flowerheads of lacecap hydrangeas are also somewhat reminiscent of pinwheels.

You will be delighted with the versatility of these lovely shrubs, so relax and enjoy their beauty!

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Climbing hydrangea vine.

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Garden Accents

Landscape accents have become increasingly popular as many of us have discovered the joys of outdoor living. Used creatively, accents can turn your garden into a magical wonderland. This summer, we invite you to view our many new and exciting garden accent product lines, including popular items such as…

  • Gazing Globes and Stands
    Old-fashioned Victorian gazing globes have made a comeback and we carry them in an assortment of colors and sizes. In addition, numerous gazing globe stands, in both metal and resin, are available.
  • Bird Baths
    A wide assortment of bird baths are available in a variety of materials: concrete, cast aluminum and terra cotta. Place your bird bath in a location where you can kick back, relax and quietly observe the bathers.
  • Statuary
    Set against a simple green background or placed on a garden pedestal amongst the flower, statues become a striking accent in the garden. Stop by and enjoy our wide variety of statuary with many different themes in durable resin and cast stone.
  • Garden Furniture
    Just the sight of our line of garden benches will tempt you to sit down and rest a spell. Choose from several styles of benches made of cast iron, eucalyptus wood, concrete and bamboo to add a sweet seat to your garden.
  • Trellises and Arbors
    Traditionally, trellises and arbors have primarily been used for their functional purpose, support. Today, no garden is complete without one of these structures. They may be used for their designed intention or simply as an ornamental accent, pathway definition or focal point. We carry pvc, wood, powder-coated metal and forged iron trellises and arbors.
  • Pots and Planting Containers
    We have a wide variety of planting containers available, including…

    • Hanging Baskets – Choose from willow, moss, metal, plastic and ceramic.
    • Pots – We have pots from Italy, Malaysia, China and more. Choose from our selection of clay, plastic, cement, tin, zinc, lightweight insulated and self-watering pots.
    • Planters– Choose from lined hayracks, cradle planters and cauldrons. We also carry plastic railing/fence/deck planters and plastic or glazed ceramic wall planters.
    • Window Boxes – Available in cedar, pvc, plastic, metal and light weight insulated material with different sizes for different windows.
    • Wind Chimes
      The soothing and melodious sound of a wind chime is sure to enhance your outdoor experience. Indulge with wind chimes in aluminum, pewter or bamboo.
    • Lighting
      Lanterns and torches are a gentle way to light areas for entertainment in the garden. Candles add a serene ambiance that is unmatched by any artificial light. Lanterns, torches and candles are captivating as their flame flickers in the evening breeze.
    • Garden Novelties
      Add a little whimsy to your garden with the addition of garden novelties. Choose from garden pixies, toadstools, Victorian water bells, wall plaques, glass bee catchers and much more. Stop by and see our great selection.

No matter what your garden size, style or theme, we have the accents to give it a personal, fun touch all your own!

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Hanging flower baskets

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Dealing with Powdery Mildew

One of the most common and easy to recognize plant diseases, powdery mildew, is caused by fungus spores that overwinter in garden debris and are spread by wind the following season. In late spring and early summer, the warmer days and high humidity provide perfect conditions for spore germination. The disease spreads over the surface of leaves of plants like Bee Balm, Lilac, Rose and Phlox. While the plant may look extremely unattractive, its overall health is not affected. Although we can’t change the conditions that favor powdery mildew, we can stop or slow its spread to keep your plants looking their best.

To control powdery mildew…

  • Place susceptible plants in locations where they receive early morning sun. This allows the dew to dry quickly from their leaves to inhibit the spread of mildew spores.
  • Increase the plants’ resistance by minimizing stress and providing adequate water, sun and soil requirements. This will help the plants naturally resist powdery mildew and other common diseases.
  • Give plants plenty of room for good air circulation. This helps leaves dry more quickly and lowers humidity so conditions are not as favorable for the mildew spores.
  • Water the soil not the leaves of susceptible plants. Use soaker hoses, drip systems or watering wands to get water just to the base of the plant and out to the drip line without watering the foliage.
  • Select mildew-resistant varieties of plants. These will vary in different areas and depend on your soil conditions and landscaping needs.
  • Prevent the disease from effecting susceptible plants by spraying with a fungicide like Bonide Fung-onyl, Bonide Infuse Systemic Disease Control or Safer Garden Fungicide every 7-14 days while conditions are favorable. Always read fungicide labels completely before applying and follow instructions carefully to prevent mishaps that could damage your plants.
  • Eliminate the breeding grounds for powdery mildew by cleaning up the garden and yard each fall, removing leaf litter, pruning branches and replacing old mulch. This will minimize the areas where spores can overwinter, reducing the chances of more mildew spreading in the spring.

Powdery mildew may not be pretty, but it can be pretty easy to control if the right steps are taken to protect your plants. Using multiple techniques will be the most effective way to reduce the spread of the mildew and keep it under control or completely eliminated so your plants always look their best.

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A Taste of the Tropics

It only takes a few plants to cast a tropical look upon a garden. Although our gardening zone here isn’t strictly tropical, it’s still possible to include some tropical and tropical-looking plants in our landscapes to create a lush summer oasis that hints at a vibrant paradise.

Use Houseplants for Tropical Flair

A simple way to add a tropical touch to your garden is to place houseplants among your outside ornamentals. As many of our houseplants originated in tropical, semi-tropical or desert zones, they’re right at home in the summer garden. Consider the effect of adding spathiphyllums, orchids, ficus or cacti to your garden or patio. A brugmansia (sometimes called datura), with giant drooping, fragrant flowers epitomizes the idea of “tropical.” Potted citrus trees produce fruit and fragrance. A “tree” of tillandsias (air plants) creates an amazing sculpture. A single large stag-horn fern hanging from the side of a sturdy shade tree is another eye-catcher. When summer ends, simply shower the plants, look for insects and treat if necessary, and reinstall them in the house to provide winter enjoyment.

Summer Tropical Bulbs

Many beautiful bulbs can add a tropical vibe to your garden with very little care or maintenance. Here are a few of our favorite summer bulb additions to the tropical garden, but remember that these plants are not winter hardy here and the bulbs must be dug up and stored inside for the winter.

  • Caladiums: Available in a variety of colors including pink, white, gray, green, red, white, mottled and variegated. These plants flourish in shade with rich soil and regular watering.
  • Callas: This slender plant with large green leaves grows 2-4′ tall. White spath-shaped flowers in spring and early summer rise above the leaves. Grows best in wet soils and light shade.
  • Cannas: Large leaves of green, red or variegated with spectacular flowers of red, orange, yellow, pink or cream in summer and early fall. Tall varieties grow to 6′ and dwarf varieties grow to 3′. Plant in full sun.

In addition to bulbs, other bold and exciting additions with tropical flair include:

  • Chilean Jasmine (Mandevilla laxa): A deciduous vine growing 15′ or higher, this provides an overhead tropical look when grown on a pergola or overhead structure. Very fragrant white flowers in summer add to the tropical effect. Requires rich soil.
  • Gunnera: Huge, dark green, stiff-haired leaves growing to 8′ tall. These “dinosaur food plants” make an amazing statement in the landscape. Requires good soil and ample water. Produces large red cone-shaped flowers.
  • Hibiscus: Tropical Hibiscus may be set outside for the summer in our area and brought back in when the cold weather sets in. There are, however, two varieties of hibiscus that are hardy in our area:
    • Rose-Mallow or Perennial Hibiscus (Hibiscus moscheutos): An American native, grows as a perennial with many varieties of different sizes and colors. Flowers may grow to 12″ diameter in red, pink or white. Regular fertilizing increases bloom vigor and colors.
    • Rose of Sharon (Hibiscus syriacus): Deciduous shrub growing to 12′ tall but easily trained or kept smaller. Flowers, 2 ½-3″, in mid- or late summer.
  • Palms: Nothing says tropical like a palm. Here are four that are readily available and can be used in your garden for a lush accent.
    • Needle Palm (Rhapidophyllum hystrix): Fan palm with short or no trunk, to 6′ tall. Extremely winter hardy.
    • Dwarf Palmetto (Sabal minor): Native to the southeastern United States. Grows 4-6′ tall by 8′ wide. Green or blue-green fan-shaped fronds.
    • Mazari Palm (Nannorrhops ritchiana): Shrubby clumping growth to 6′ tall, bluish-green colored fan fronds.
    • Windmill Palm (Trachycarpus fortunea): Grows to 30′ tall and 10′ wide.
  • Bamboo: Few plants rival this group of grasses for hardiness, tropical appearance and variation. Both clumping and running bamboos vary in color, height and requirements. From the dwarf to the giant, there’s a bamboo to add tropical pizzazz to your garden.

To see the best selections for our growing zone or ask questions about creating a tropical garden, come in and talk with our friendly staff. They can help you make the best selection to put the topical in your garden paradise.

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Goji Berry (Wolfberry)

Touted by some as the “fruit from the fountain of youth” because of its high antioxidant, carotene and essential amino acids content, the goji berry (Lycium barbarum), also creates a large sensation in the garden. Additionally, it’s easy to grow in zones 3-10 (even in seaside locations!) and doesn’t need a second plant for cross-pollination as it is self-pollinating. Is this super plant right for your garden?

Growing Goji Berry

In its natural form, this vigorous vine sprawls along the ground but training it to grow vertically is tidier, more space efficient and will protect nearby plants from overcrowding. Tie it to a strong stake, espalier along a wall or train along another framework for an attractive 8-10′ long plant and easier harvesting of the berries. Full sun exposure produces the most fruit. In areas where summer temperatures exceed 100⁰ F, provide afternoon light shade. It thrives in alkaline soil with a pH from 6.8-8.1. Add lime to the soil to increase the pH, if necessary. Regular watering and light fertilizing, along with light pruning to maintain its shape and appearance, are all that’s necessary to grow your own goji berries.

If your space is limited, grow goji in a container. Container growing produces fruit earlier, makes it easier to maintain the soil pH and easily manages the vine’s size. Moreover, it’s quite attractive. Because the taproot grows deeply, be sure to choose a frost-proof container at least 18″ deep and 18″ diameter or larger.

In the spring, bright red-orange berries follow lavender bell-shaped flowers. Since birds love the fruit, cover with netting to protect it so it can ripen fully.

The berries turn red before they reach their full ripeness. Allow the berries to remain on the plant prior to harvesting to develop the best flavor. The best way to tell if they’re ripe is to eat one. When the tart taste becomes sweeter, they’re ready. Use the fresh berries in salads, sauces, juices or soups, or experiment by adding them to favorite jam recipes, infusing water or creating crushed fruit spreads. Alternatively, preserve your berries by drying or freezing and you can enjoy them long after the harvest ends.

At first frost, the plant becomes dormant and the leaves drop. They’re hardy to -18⁰ F. When the temperatures rise to 50⁰ F, the leaves and fruit begin anew. In warmer areas, then, the growing season will be longer and you can enjoy goji berries even more, while in cooler zones you will have a shorter season, but one that is just as sweet.

If you have questions or need assistance choosing your goji berry, soil or container, our friendly staff is always glad to help.

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