Prickly pears are a subgroup of Opuntia, identified by their wide, flat, branching pads. They are also called nopal cactus or paddle cactus. Most prickly pear plants are found in warm, dry climates like the Southwestern U.S., although there are some cold-hardy species such as the Eastern prickly pear (O. humifusa). (USDA hardiness zones 4-9). Prickly […]
Archive for the ‘Spring flowering’ Category
American Elm Continues To Be Planted
American elm (Ulmus americana) is a medium to large deciduous tree, typically growing to 60-80 feet tall with a vase-shaped, broad-rounded crown. It is native to eastern and central North America. Once widely planted as a street and lawn tree, its populations have been decimated by Dutch elm disease (DED) over the past century. Numerous […]
Firecracker Plant (Cuphea)
Planting Cupheas should set off fireworks in your summer flower garden. Cupheas are dependable, low-maintenance flowers that easily cope with the heat and humidity of the South. They’re exceptionally long blooming, attract bees, wasps, butterflies and hummingbirds like magnets, and are versatile enough for container plantings or in-ground beds. (See list below). Currently, the most […]
Growing Tropical Hibiscus
Tropical Hibiscus(es) (Hibiscus rosa-sinensis) are a non-hardy group from southeast Asia. They require temperatures above 50°F year-round (USDA Plant Hardiness Zones 9–12) and will likely be injured at temps below 35°F. They are evergreen cousins of the very hardy deciduous shrub group —Althea (H. syriacus) and herbaceous perennial favorites like Rose Mallow (H. moscheutos) and […]
Gauras For Summer Flower Power
Lots of TN, VA, and KY gardeners don’t know Gauras, a tough beautiful Texas native perennial that performs equally well in our area. After countless trips to Biltmore Estates and the NC Arboretum in Asheville, I have gained an appreciation for its long summer blooming habit. Gaura (Oenothera lindheimeri) is a low-maintenance perennial native to […]
Vincas/Annual Periwinkle Thrive In Hot Summer Gardens
Annual vinca or periwinkle (Catharanthus roseus), aka Madagascar vincas, is a summer flowering annual popular in Southern and Midwest gardens (USDA hardiness zones 9-11). Before setting out spring transplants, wait until soils have warmed up and all threats of frost have passed. The arrival of summer heat and humidity is when vincas bloom heaviest. Vincas […]
Wild Indigo (Hybrid Baptisias)
Wild indigo, false indigo, or Baptisia (Baptisia spp.) is a long-lived U.S. native perennial (USDA hardiness zones 4-9). Plants are deeply tap-rooted and will reward you for many years of multi-seasonal beauty. They’re sometimes mistaken for Carolina lupine (Thermopsis caroliniana). Modern day cultivars are hybrids of 8 Baptisia species. Top four species are purple (B. australis), lavender […]
Growing Ajuga
If you’re looking for an attractive perennial groundcover to quickly fill in small or large patches in your garden, you can’t go wrong with ajuga (Ajuga reptans), also called as carpet bugleweed. This creeping evergreen plant spreads quickly and thickly. Plant it on moderate slopes for erosion control. A vigorous clump should smother out weeds […]
Princess Flower (Tibouchina)
Princess Flower, aka glory bush (Tibouchina urvilleana) and the lesser-known T. grandifolia are evergreen tropical shrubs and small trees native to Brazil (zones 9-11). In zone 8 plants often dieback to the ground in winter and come back if winter temps remain above freezing. In the U.S. tibouchinas are primarily treated as garden annuals in […]

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