Winter foliage burn on evergreens is often most prevalent on boxwoods (Buxus), hollies (Ilex), rhododendron, and many kinds of conifers. Symptoms often develop when temperatures warm up in late winter and early spring. This type of winter damage is often misdiagnosed as an infectious disease or damage from excessively cold temperatures. Evergreens transpire (lose water […]
Archive for the ‘Winter Protection’ Category
Outdoor Holiday Decorating With Poinsettias and Cyclamens
If you live in U.S. hardiness zones 3-7, December weather is ordinarily is too frigid to grow poinsettias and cyclamen outdoors. Southeastern U.S. cities like Charleston, SC, Savannah, GA, and northern parts of FL like Jacksonville, Tampa and Orlando enjoy mild December temperatures 50 º F. lies in zone 8 as well as most of the Dallas […]
Tips for Growing Abutilon (Flowering Maple)
Abutilon (Abutilon x hybridum) is a group of tender evergreen perennials (USDA hardiness zones 9-11). In USDA hardiness zones 6 thru 8, abutilon is grown outdoors from mid-spring to mid- autumn, when it is moved indoors and grown as a tropical houseplant. When moved indoors, partially cut back to fit its indoor space. In early spring prune the plant […]
Overwintering Caladium Tubers
Dr. Mary Lewnes Albrecht, retired dean of the Herbert College of Agriculture at the University of Tennessee, offers her recipe for overwintering caladiums. For many years Dr. Albrecht has been saving several heirloom varieties by this procedure: #1. Plants start to go dormant in late September through October (zone 7a Tennessee) and earlier if summer […]
Texas Elephant Ears Study*
Dr. Jared Barnes and colleagues at Stephen F. Austin University in Nacogdoches, Texas, trialed 46 Colocasia species/cultivars over two years to determine what performed best over a two-year growing period. First of all, Nacogdoches is in east Texas (Zone 8-b) and typifies the upper coastal plain, stretching from there east to South Carolina. Cultivars were […]
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 […]
Short Grasses For Small Places
Many gardeners have small sunny or partially shaded places where select ornamental grasses thrive, including using them as companion plants in containers. Enjoy their winter architecture. Perennial grasses should be cut back to 3- to 6 inches in late winter. Here are an assortment of six of the very best along with several varieties that you should […]
Princess Flower Excels Where Summers Are Hot
Princess Flower or Glory Bush (Tibouchina spp.) is a tropical shrub (from Brazil) that produces beautiful showy purple flowers. It blooms over a long time span (USDA hardiness zones 9-12). The most popular species in cultivation is T. urvilleana. A well-tended plant can be trained into a miniature tree in a large container for patios and decks. This […]