Creating both edible and ornamentally pleasing vegetables has been a goal of plant breeders. Flowering cabbage and kale (Brassica oleracea) are a new landscaping niche in the autumn garden. Plants develop huge leafy rosettes and eventually form heads. Color patterns on leaves include white, cream, red and purple shades. The […]
Archive for the ‘Heat Tolerance’ Category
New PG Hydrangeas Excel In Performance
Panicle, PeeGee or PG hydrangeas (Hydrangea panculata) brighten up the July and August garden landscape. They’re native to China and Japan. They grow and bloom almost anywhere in the U.S. (USDA hardiness zones 3 – 8). Unlike mophead hydrangeas (H. macrophylla), that often fail in full day sun, PGs excel in 6 hours or more of sun. PG hydrangeas are vigorous growers with upright branching and coarse textured […]
Garden Phlox – Select Mildew Resistant Varieties
Garden phlox (Phlox paniculata), aka summer phlox, is native from New York to Iowa south to Georgia, Mississippi and Arkansas (USDA hardiness zones 4 to 8(9)). They are valued for their long beautiful floral display and fragrance. In the wild phlox grow it in moist, rich open woodlands, […]
Joe Pye Weed Is No Longer A “Weed”
U.S. native Joe Pye (Eupatorium spp.), formerly “Joe Pye Weed”, has been tamed. Modern day selections grow more compact compared to 8+ feet tall wildlings that inhabit fields across eastern North America (USDA hardiness zones 4-8). Huge, terminal, domed, compound flower heads measure 12-18 inches across (depending on cultivar) and make […]
Long-Blooming Tennessee Coneflower
Native to a two-county area of mid-Tennessee, Tennessee coneflower (Echinacea tennessiensis) is a popular favorite among gardeners across the U.S. because of its long blooming season. It has also spawned a few hybrid selections. The pale pink, flat-topped flowers with green and burgundy centers (cones) follow the tract of the sun across the sky. From July […]
Oriental Spruce Stands Up to Southern U.S. Heat and Humidity
Oriental spruce (Picea orientalis) stands as a tall spire in the urban landscape. A mature tree may reach 50 to 60 feet tall and makes a narrow stature or footprint of 15 to 25 feet in spread. Lateral branches uniquely bend downward while the growing tips sweep gracefully upward. Annual growth rate is slow at 12-15 inches. Two-thirds of the short dark green needles lay flat. Needles are lustrous on the […]
Butterfly Weed – Long-lived Flowering Perennial That Nourish Monarchs
Milkweed (Asclepias tuberosa), aka butterfly weed, is a tuberous rooted perennial native in the Eastern and southern U.S. (USDA hardiness zones 3 to 9). It grows in dry/rocky open woodlands, prairies, farm fields, and along roadsides. Individual plants typically grow as a clump to 1- 3 feet high and 1 ½ feet wide. Unlike many of […]
Three Native Landscape Grasses To Try
These three native grasses are easy to establish in average, dry to medium moist, well-drained soils and in full sun. They tolerate a wide range of soils including dry rocky sites, and are exceptionally drought tolerant. Figure on 1 to 2 years for each to become fully established. Blue Lyme Grass (Leymus arenarus ‘Blue Dune’) is a vigorous spreading cool […]
Six Summer Annuals Your Grandma Did Not Know About
Angelonia (“summer snapdragon”)… are outstanding performers in the summer flower garden, yet so many gardeners have never heard of them. Angelonias demonstrate outstanding heat and humidity tolerances. Serenita™ (12-14 inches high), Serena™ (15-18 inches high), and Archangel™ (12-14 inches tall high) series, are available in purple, lavender, pink, […]