Archive for the ‘acidic soil’ Category

Something New to Grow – Esperanza, Yellow Bells

                Esperanza or Yellow Bells (Tecoma stans) is a 6 foot tall perennial shrub that grows in South Texas and Mexico (USDA zones 8-10). Esperanza means “hope” and it is destine to become a popular flowering annual in more U.S. Southeastern gardens. It demands a well drained soil […]

Fall Color Calendar For Red Maple

Red maple (Acer rubrum) is commonly planted as a 40-60 feet tall street or shade tree (USDA hardiness zones 3-9). Tiny red flowers burst open early, often in early March throughout the Southern Appalachian region (USDA hardiness zones 6 and 7). Flowers give way to reddish double winged samaras. Its glossy dark green 3-5 lobed […]

Little Girl Magnolias Avoid Early Spring Frosts

The early flowering deciduous magnolias, namely star (Magnolia stellata) and tulip (M. soulangeana) magnolias, are often susceptible to late winter-early spring frosts. In the 1980’s the U.S. National Arboretum released the series of 8 shrub-type cultivars called the “Little Girl Magnolias”. They were crosses between M. liliiflora and M. stellata. Over ten years these deciduous […]

Virginia Bluebells – An Early Spring Wildflower

In early spring Virginia bluebells (Mertensia virginica) is an ephemeral woodland wildflower. In early April their lovely presence is to be enjoyed for a short 8-10 week period. Clusters of pinkish-blue nodding buds burst forth into soft pastel blue flowers. Gradually, the bell -shaped flowers age to pale pink hues. The lovely blue flowers are […]

Treat Colorful Caladiums As Tender Annuals

Caladiums at Yewdell Gardens in Crestwood, KY (near Louisville) Caladiums (Caladium bicolor) are tropical foliage plants which are grown as annuals. Caladiums brighten up shady to sunny spots. Their brightly colored foliage is either heart and lanced shaped in color combinations ranging from red, rose, pink, chartreuse, green, and white. Caladiums absolutely prefer a warm, […]

Epimediums Excel As Dry Shade Groundcovers

Epimediums, aka barrenwort or fairy wings, are slow-growing groundcovers which are hardy in USDA hardiness zones 4-9. Foliage varies by species, variety, and the season of the year. Most are deciduous, but some evergreen in the Southern Appalachian region (zones 6 and 7). The leaves of some may be chartreuse in spring, green in summer, […]

Colorful Pentas Bloom In Summer’s Heat And Humidity

Pentas, aka Egyptian starflower, (Pentas lanceolata) excel in the summer flower garden. Only a few years ago, pentas were only found decorating window boxes and other containers. Today, they have becoming a popular bedding plant in geographic areas where summer temps get hot. Pentas grow best in full to part sun (6-hours minimum), and preferably, […]

Zelkova Becoming Dominant Urban Street Tree

  Japanese zelkova (Zelkova serrata) is a 60-90 feet tall shade tree with structurally strong branches. Fast growing zelkova may grow 2 feet or more in a single year. Belonging to the elm family (Ulmaceae), zelkova exhibits several elm-like features, including a vase shaped branching habit. Its very different exfoliating mottled bark distinguishes it from elms. […]

‘White Shield’ – New Thornless Osage Orange

Osage orange (Maclura pomifera) has been declawed and neutered. Also called Bois D’Arc (pronounced “bow-dark”) by native Americans, this tough native prairie tree species (USDA Zones 5-8) produces large 4-6 inch diameter yellowish green fruits (“hedge apples”) which may weigh 2 to 3 pounds. They fall from the tree in October to create a maintenance […]

‘Green Giant’ Arborvitae: A Terrific Green Privacy Screen

Western arborvitae (Thuja plicata) is a large native evergreen tree from the Western U.S. (USDA hardiness zones 5-7). As many as 30 cultivars are available among dwarf, weeping, and variegated leaf forms. One of the most popular selections is ‘Green Giant,’ a hybrid between T. plicata and T. standishii, a Japanese arborvitae. In its native […]