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 […]
Archive for the ‘Regional’ Category
Turk’s Cap Lily for Your Summer Enjoyment
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″ […]
Botrytis Disease in Marigolds Can Be Avoided
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 […]
Bloomerang™ Lilac For Non-Stop Flowering
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 […]
Re-blooming Iris For Twice (and More) Flowering
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 […]
Complete Care of Tall Bearded Iris
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. […]
Katsura Tree Comes Home To America
Katsura tree (Cercidophyllum japonicum) is a large 50-60 feet tall tree from Japan and China. Katsura became extinct in North America during the Pleistocene Age and was re-introduced in 1862 by botanist Thomas Hogg. It is truly a beautiful tree, yet is still rarely planted. Katsura is hardy in zones 4-8. It prefers a moist well-drained, compost-rich soil […]
Piedmont Azalea
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 […]
Evergreen Kousa Dogwood? – Depends on Where You Garden
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 […]
Very Tall Stake For A Weeping Blue Atlas Cedar
Weeping Blue Atlas Cedar (Cedrus atlantica ‘Glauca Pendula’) is “gravity prone”. This strongly weeping tree just doesn’t happen without staking in its formative years. At planting position a sturdy 12-16 foot metal or plastic stake or rod close to the trunk at planting time. The staking and tying procedure is neither complicated nor time […]