Agaves (Agave spp.) are long-leaved succulent landscape plants. These native perennial succulents grow in desert-like environments (USDA hardiness zones 8 and warmer). Plants grow in a rosette form with long their fleshy leaves frequently tipped with one or more sharp spines and a prominent bloom spike with cup shaped flowers. Most are native to the Southwest U.S. […]
Archive for the ‘Disease resistant’ Category
Firebush Is One Tough Texas Flowering Plant
Firebush. aka scarlet bush (Hamelia patens), is indigenous from Mexico to Central America (USDA hardiness 10-11). Treat it as a tempermental perennial in zone 9, and an annual everywhere else it is not hardy. This fast growing plant blooms through most of summer into fall with showy clusters of tubular red buds and flowers. Firebush thrives in Texas heat […]
Check Out These Four Plant Select® Picks
If you’re search for top performing plants, especially very drought tolerant, take a look at the picks from Plant Select®. This is a nonprofit collaboration of Colorado State University, Denver Botanic Gardens and professional horticulturists. Their mission is to seek out and distribute the very best plants for landscapes and gardens from the intermountain region to […]
Ice Plants (Delosperma)
Ice plants (Delosperma spp.) are perennial evergreen succulents from South Africa. Two species are most popular in U.S. gardens starting with hardy ice plant (D. cooperi) (zones 6b – 9) and yellow ice plant (D. nubigenum) (zone 4 – 10). There are also many hybrid cultivars sold at garden centers and on-line. North of zone […]
Less Invasive Butterfly Bush Identified
Butterfly bush (Buddleia) is a popular garden shrub in many areas of the U.S. Buddleia invasiveness is a serious issue in the Pacific Northwest. The Oregon Dept of Agriculture, Plant Division, has approved for sale these buddleia cultivars in the state. The approved varieties produce 2% or less viable seed, meeting Oregon’s standards for sterility. The […]
Panicle Hydrangeas For Small Gardens And Containers
Panicle, PeeGee or PG hydrangeas (Hydrangea panculata) brighten up your July-August garden. They hail from China and Japan and grow almost anywhere in the U.S. (USDA hardiness zones 3 – 8). PG hydrangeas are far more reliable in northern areas (zones 3-5), than mophead hydrangeas (H. macrophylla). They flower at their best in full to partial day sunlight (6 hours […]
Sorting Through The Joe Pye Cultivars
Joe Pye weed (Eutrichum purpureum) is a native perennial commonly spotted onthe edge of farm fields in the eastern and northern U.S. (USDA hardiness zones 4 to 9). The wild species grows 5-7 feet high and 2-4 feet wide. It blooms from late July to September and is a magnet to attract bees and butterflies. Over the past two […]
Act Quickly Against Eastern Filbert Blight
European Hazelnut (Corylus avellana) is highly prized both for its edible nuts and as a landscape shrub/small tree. Unfortunately, it is susceptible to eastern filbert blight (EFB). American hazelnut (C. americana) is relatively resistant. EFB is a lethal disease as it may kill a large shrub in 4-5 years. The fungus was discovered in the Pacific […]
Chinese Fringetree Is Versatile Landscape Tree
Chinese fringetree (Chionanthus retusus) is native to China, Korea and Japan (Zone: 6 to 9a). Related to native U.S. species (C. virginicus), fringetrees are noted for their profuse spring bloom of fragrant white flowers. It is most often seen in cultivation as a large, multi-stemmed, deciduous shrub growing to 15 – 20 feet tall with a […]