Archive for the ‘Fertilizing plants’ Category

Success In Growing Franklinia Tree

Franklinia (Franklinia altamaha) is a uniquely different large shrub or small tree. Great plant for the “I can grow anything crowd”. Rated hardy in USDA hardiness zones 5-8, I’ve never seen a landscape quality specimen in zone 5 and find that the tree performs best in zones 6 to 7. Success with growing franklinia hinges on […]

‘Henry Eilers’ Coneflower (Rudbeckia)

Called “sweet coneflower” (Rudbeckia subtomentosum), this U.S. Midwest prairie species is a long-lived perennial that grows in a variety of soils (USDA hardiness zones 4-8).  Sweet coneflower prefers full or partial sun (6 hours minimum) and a moist well-drained loamy soils. It is highly drought tolerant after its first year in the garden. Established plants emerge in mid-spring as a […]

Growing Morning Glories

Morning glory vines (Ipomoea tricolor) add a dash of old fashion charm to today’s gardens. YES! these aggressive vines demand a high degree of attention. Their funnel or tubular-shaped flowers open in the morning and close late in the afternoon. In a single growing season, vines may grow 6 to 12 feet and more (depending on variety). Morning […]

Ligularias For Moist Sites

Ligularias (ligs) are big leafy perennials whose roots must be kept constantly moist so that plants don’t wilt or  “faint”. An established plant may tolerate several days in dry soil, yet the droopy foliage will recover from the water loss each night. Several species are tropical (under the genus Farfugium). Bigleaf ligs (L. dentata) and narrow-spiked ligularias (L. stenocephala), […]

Favorites Among The Rose Of Sharon (Althea) Shrubs

Rose of Sharon, aka shrub althea, (Hibiscus syriacus) is a woody hibiscus shrub that is hardy in temperate northern areas of the U.S. (USDA hardiness zones 5-9). This summer flowering shrub is exceptionally easy to grow. At one time,  it was a great pass-along shrub that fell out of favor. However, old fashioned varieties frequently reseeded […]

Growing Castor Bean Plant

Over the years castor bean (Ricinus communis) plants have been a common sight in public gardens. These tall ornamental annuals are cherished for both their colorful flowers and seed capsules, and bold foliage. The species, a botanical member of the spurge family (Euphorbiaceae), is indigenous to the southeastern Mediterranean region, Eastern Africa, and India. Unlike many spurges, the […]

Korean Sweetheart Tree

The late Dr. J. C. Raulston, N.C. State University horticulture professor emeritus, discovered Korean sweetheart tree (Euscaphis japonica) in 1985 on the Korean Peninsula while participating in a U.S. National Arboretum collection expedition (USDA hardiness zones 6-8). Dr. Raulston brought seeds back to the N.C. State Arboretum for assessment and evaluation. The species common name “sweetheart […]

Native Plumleaf Azalea Blooms In Late July

Plumleaf azalea (Rhododendron prunifolium) is a native deciduous azalea that grows in the Chattahoochee River Valley on the Georgia-Alabama line (USDA hardiness zones 6-9). It is one of the signature plants of Callaway Gardens in Pine Mountain, Georgia. Their bright orange-red flowers surprise in late July into early Augusta and blooms may last for 2 weeks or […]

New Angelface Angelonias Produce Larger Flowers

Angelonias, aka summer snapdragons, (Angelonia angustifolia)  hail from Mexico.  Angelonias are top performing summer flowering annuals (USDA zones 9 -11). The AngelFace® series were recently developed by Proven Winners (PW).  Plants are covered with snapdragon-like blooms up and down the floral stems, 18-24 inches high and 12-18 inches wide. Angelface series boast slightly larger green leaves and bigger blooms than […]

Colorful ‘Sugar Tip’ Althea ( Rose Of Sharon)

Rose of Sharon or shrub althea (Hibiscus syriacus) is a vigorous, upright, multi-branched, deciduous shrub that generally grows 8-12 feet tall and 4-6 feet wide. Althea is native from eastern to central Asia (USDA hardiness zones 5-8). Sugar Tip® is a patented variety that features variegated creamy-white and blue-green foliage and soft pink double flowers. Leaf […]