Archive for February, 2020

‘Alleghany’ Viburnum – A Versatile Spring Flowering Shrub

Alleghany viburnum (Viburnum x rhytidophylloides ‘Alleghany’) is a hybrid cross between V. rhytidophyllum and V. lantana ‘Mohican’ (USDA hardiness zones 5-8). ‘Alleghany’ viburnum is rated a four season landscape shrub, with multiple year-round appeal including a durable semi-evergreen leathery foliage, dependable spring flowering, and showy fruits in fall and winter. This lovely spring flowering shrub grows 10-12 feet tall and […]

Dependable Conifer Trees For Southeast U.S. Landscapes

Arizona cypress (Cupressus arizonica var. glabra) is a southwestern U.S. conifer tree that is often underplanted. Soil drainage is an absolute must! Growth rate is moderate (15 feet high after 10 years) and eventually will reach 30-50 feet at maturity. (zones 7-9). I have seen multi-year specimens thriving in zone 6b. Deodar cedar (Cedrus deodara) is […]

Some Conifers Don’t Like Summer Heat And Clay Soils

Most conifers are best grown in deep, moist, well-drained, acidic loamy soils and in full sun. In the deep South evergreen conifers are challenged by warm soils, poor soil drainage, and humidity. Humidity increases their susceptibility to diseases. Once established they are drought tolerant, but most fail in poorly drained wet soils. Many pine species […]

Zone 6 Hardy Camellias

Once upon a time, across the Southern U.S., camellias were highly prized for their showy flowers in the fall-winter landscape. What has changed is that gardeners in the Middle Atlantic and mid-Southern states can now grow them equally well. Camellias are evergreen woody shrubs native to Asia. Currently, after decades of inter-breeding with species from […]

Changing Garden Soil pH

In general, the garden soil pH fluctuates only slightly unless you accidentally spilled fertilizer or limestone. Soil pH is also affected by rainfall patterns, decomposing organic matter, and bacterial activity in the ground. In the eastern U.S. rain water is slightly acidic. Acid rain is the result of these pollutants (mostly sulfate and nitrate) from […]