Pagoda dogwood (Cornus alternifolia), aka alternate leaf dogwood, is a small deciduous tree or large multi-stemmed shrub. It typically grows 15-25 feet tall and spreads slightly wider than tall. It exhibits a very distinctive layered horizontal branching. Small creamy white non-bracted flowers appear as flattened cymes in mid to late spring, about 3-4 weeks after […]
Archive for the ‘Dogwood (Cornus)’ Category
‘Appalachian Spring’ Dogwood Highly Disease Resistant
This may be old news, but definitely worth repeating. Twenty five years ago a dreaded dogwood disease threatened to eliminate our beautiful spring flowering tree from our gardens. Appalachian Spring flowering dogwood (Cornus florida ‘Appalachian Spring’) was found at the Camp David Presidential Retreat atop Catoctin Mountain in Maryland. Currently, Appalachian Spring is the only dogwood cultivar […]
Early Blooming Cornelian Cherry In The March Garden
Cornelian cherry (Cornus mas) is a multi-stemmed, low-branched dogwood tree or shrub. It typically grows 20-25 feet tall and slightly less in overall width (USDA hardiness zones 4-7). Tiny, golden yellow flowers appear in late winter, around March 1st in my east Tennessee garden, and remain in bloom through most of the month despite cold […]
Autumn Best Planting Time For Spring-blooming Dogwoods
“Autumn is the season to plant dogwoods”, according to the University of Tennessee Dogwood Research Team. Newly planted dogwoods (Cornus spp.) can establish their roots in the still warm soil and be ready to handle next spring and summer’s heat and dry spells. Over the past 20 years the UT Dogwood Team has released six […]
Sapsucker Feeding May Blacken Maple Trunks
You see or hear a sapsucker tapping in a yard tree and pay little attention to it. The bird perforates the tree or shrub trunk and main branches with numerous shallow holes, similar to a riveter working with sheet metal. A sapsucker feeds on the cambium sap and on insects under the bark. The holes are deep […]
What Can Be Done About Phytophthora
Phytophthora disease (Phytophthora spp.) is the fatal cause of root rots, stem cankers and crown rots. Several hundred species of plants are susceptible, including redbuds, dogwoods, rhododendrons, camellias, white pines, firs, yews (Taxus spp.), and fruit trees. It thrives in warm moist saturated soils. Phytophthora may lie dormant in the soil for several years, waiting for a […]
Dogwoods for Spring
Five disease resistant varieties of flowering dogwood (Cornus florida), released by the University of Tennessee in Knoxville, are available at local garden centers this spring. Supply should be better than in past years. Powdery mildew resistant varieties: ‘Appalachian Snow’ (pictured), ‘Appalachian Blush’ and ‘Appalachian Mist’. In addition, ‘Cherokee Brave’, with dark pink flowers, exhibits good mildew resistance. […]