In 2011 across Europe, seventy percent (70%) of the garden impatiens (Impatiens walleriana) were hit with downy mildew. Disease outbreaks were also reported in a few U.S. coastal cities last year. U.S. growers have been preparing for the possible outbreak in summer 2012. The potential for this disease can be catastrophic as the […]
Archive for the ‘Flowers’ Category
Peruvian Lilies – A Gift Which Keeps On Giving
Posted by Hugh on April 16th, 2012
Peruvian lilies (Alstroemeria spp.), also called Lilies of the Nile), are not true lilies (Lilium spp.). Likely, you have purchased a bouquet of alstroemerias from the florist section of your local supermarket. In addition, many potted hybrid varieties have been introduced from Holland and elsewhere over the past decade. Turns out that some Peruvian lilies are perennials, winter hardy in the Southern Appalachian Region (USDA hardiness zones 6 […]
Posted in acidic soil, Alstroemeria (Peruvian lily), Fertilizing plants, Perennials, Southern Appalachian Region, Summer flowering, watering tips, winter hardiness, Winter Protection 
Comments Off on Peruvian Lilies – A Gift Which Keeps On GivingTurk’s Cap Lily for Your Summer Enjoyment
Posted by Hugh on April 12th, 2012
Turk’s cap lily (Lilium superbum) is native perennial started from bulbs. The strong single stem grows up to 6 feet tall. Leaves generally form in whorls of 3-9 along the stem. The lanceolate leaves are individually upwards of 7 inches longand 1 inch wide, and rather stiff to the touch. Upwards of 1-12 flowers nod downward from 4-8″ […]
Posted in acidic soil, Butterflies, compost, Flowering Bulb, Flowers, Hummingbird, Lily (Lilium spp.), Native Plant, Perennials, Soil drainage, Southern Appalachian Region, Summer flowering, Voles Comments Off on Turk’s Cap Lily for Your Summer EnjoymentBotrytis Disease in Marigolds Can Be Avoided
Posted by Hugh on April 10th, 2012
Botrytis Disease in Marigolds Marigolds (Tagetes spp.) have been long time favorite summer annuals in Southern Appalachian gardens (USDA zones 6 and 7). Marigolds come in three sizes: 18-36 inch tall “African” marigolds, 12-18 inch medians and 8 -12 inch “French” border types and in two color choices- orange and yellow. Begin planting in April or May after […]
Posted in Disease prone, Drought tolerant, Flowers, Garden Problems, Heat Tolerance, Marigold, Southern Appalachian Region, Spring flowering, Summer flowering, Summer heat tolerant, watering tips Comments Off on Botrytis Disease in Marigolds Can Be AvoidedBloomerang™ Lilac For Non-Stop Flowering
Posted by Hugh on April 8th, 2012
In most Northeast and Midwestern states, lilacs (Syringa spp.) are the classic spring-flowering shrub, treasured for their beautiful and fragrant flowers. Lilacs are vigorously growing shrubs and are utilized in the landscape as single specimens or as multiple hedging shrubs for privacy. Further south, in the warmer Southern Appalachian region (USDA zones 6 and […]
Posted in acidic soil, alkaline soil, deadheading, Disease resistant, Drought tolerant, Green Privacy Screen, Lilac (Syringa), Pruning, Southern Appalachian Region, Spring flowering, Summer flowering, Summer heat tolerant Comments Off on Bloomerang™ Lilac For Non-Stop FloweringRe-blooming Iris For Twice (and More) Flowering
Posted by Hugh on April 6th, 2012
Gardeners who desire more flowering from garden iris (Iris spp.) should be planting re-blooming types. Some cultivars may re-bloom up to three times in one growing season. The re-blooming trait is found both in bearded and beardless irises (I. germanica). Re-bloomers need to be well established for one year, sometimes two, to bloom multi-seasonly. Some […]
Posted in Autumn flowering, compost, Fertilizing plants, Iris, Iris (Tall bearded), Propagation (dividing), Pruning, Southern Appalachian Region, Spring flowering, Summer flowering, watering iris Comments Off on Re-blooming Iris For Twice (and More) FloweringComplete Care of Tall Bearded Iris
Posted by Hugh on April 4th, 2012
Most gardeners plant tall bearded iris from late August through October to insure good root development before winter sets in. Spring planting is another option as iris may be purchased in containers. Bare root rhizomes need to soak overnight in water before planting. Bearded irises prefer a sunny location and a slightly acidic well-drained soil. […]
Posted in acidic soil, compost, deadheading, Disease prone, Garden Maintenance, Iris (Tall bearded), Mite susceptible, mulching, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Transplant problem, watering iris, winter hardiness Comments Off on Complete Care of Tall Bearded IrisPiedmont Azalea
Posted by Hugh on March 30th, 2012
Piedmont Azalea (R. canescens) at Callaway Gardens Early flowering Piedmont azalea (Rhododendron canescens) is one of the most common native deciduous azaleas in the southeastern U.S. It is frequently confused for pinxterbloom azalea (R. periclymenoides) which blooms 3-4 weeks later. Piedmont azalea is hardy in USDA hardiness zones 6 to 9. Piedmont azalea reaches a mature height between […]
Posted in acidic soil, Attracting birds, Azalea (deciduous), Bee Favorite, Butterflies, compost, Insect (Pest) Problems, mulching, Native Plant, Piedmont azalea, Pruning, Root suckering, Southern Appalachian Region, Spring flowering, Trees & Shrubs, winter hardiness Comments Off on Piedmont AzaleaEvergreen Kousa Dogwood? – Depends on Where You Garden
Posted by Hugh on March 28th, 2012
Chinese (kousa) dogwood (Cornus kousa) is a small spring flowering dogwood. Kousa blooms about 2 – 3 weeks after our native flowering dogwood (C. florida) has finished. Lustrous dark green leaves begin to emerge a week or two before the lovely pointed 3- inch white bracted flowers. Fall leaf color is purplish red and not quite as vibrant […]
Posted in Chinese (kousa) dogwood, Disease resistant, Evergreens, Planting tips, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Trees & Shrubs, Winter Garden Interest, winter hardiness, winter injury, Winter Protection Comments Off on Evergreen Kousa Dogwood? – Depends on Where You GardenContorted Filbert Offers Great Fall And Winter Interest
Posted by Hugh on March 23rd, 2012
Contorted filbert (Corylus avellana ‘Contorta’), aka Harry Lauder’s walking stick, is an 8-10 foot tall shrub. It grows in average well-drained acidic or mildly alkaline soil and thrives either in full or partial (6 hours) sunlight. Contorted filbert is usually sold in a grafted form. It is also called corkscrew hazelnut because most branches, twigs and leaves display […]
Posted in acidic soil, alkaline soil, Contorted filbert (Corylus), Propagation(grafting), Pruning, Root suckering, Southern Appalachian Region, Spring flowering, Trees & Shrubs, Weeping habit Comments Off on Contorted Filbert Offers Great Fall And Winter Interest
