Red osier dogwood (Cornus sericea) is a medium-sized, deciduous shrub native to much of the Northern and Western United States (USDA hardiness zones 2-7). Without question these shrubs standout in winter by their colorful stems (see pruning recommendations below). Cut branches are an added plus for indoor arrangements. The yellow-twig form (C. sericea ‘Flaviramea’) is also available. Leaves are oblong-lanceolate […]
Archive for the ‘Propagation (dividing)’ Category
“No Dig” Planting Of Tulips
Digging lots of holes to plant 25 0r 50 tulip bulbs is a backbreaking chore. It doesn’t have to be that way. More than a decade ago, plant researchers at Cornell University in Ithaca, N.Y., developed a planting method called “top-planting”. It eliminates all the digging and the tulips come back and bloom well for […]
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 […]
Toadlilies In The Autumn Garden
Toadlilies (Tricyrtis spp.) are late season flowering perennials in the shade garden. Most perennials have finished blooming as their flower buds are forming. They’re native to moist woodsy environs of India, China and Japan and are Botanical members of the lily (Lilaceae) family (USDA hardiness zones 4-9). When properly sited, toadlilies are long-lived and require […]
‘Henry Eilers’ Coneflower (Rudbeckia)
Called “sweet coneflower” (Rudbeckia subtomentosum), this U.S. Midwest prairie species is a long-lived perennial that grows in a variety of soils (USDA hardiness zones 4-8). Sweet coneflower prefers full or partial sun (6 hours minimum) and a moist well-drained loamy soils. It is highly drought tolerant after its first year in the garden. Established plants emerge in mid-spring as a […]
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 […]
Ligularias For Moist Sites
Ligularias (ligs) are big leafy perennials whose roots must be kept constantly moist so that plants don’t wilt or “faint”. An established plant may tolerate several days in dry soil, yet the droopy foliage will recover from the water loss each night. Several species are tropical (under the genus Farfugium). Bigleaf ligs (L. dentata) and narrow-spiked ligularias (L. stenocephala), […]
Heat Loving Annuals For Containers
Not all annuals grow well in containers. An aggressively growing annual may not be a suitable companion plant in containers. Small containers dry out quickly. Large containers, a minimum of 16 inches across, should be your beginner size. For an eye-catching container garden, utilize plants that require the same care but differ in colors, heights, […]
‘Herbstsonne’ Rudbeckias Fill Their Spot
For an old fashion plant ‘Herbstsonne’ (Rudbeckia laciniata) still pops up in many modern day gardens. It is a tall upright growing, clump-forming perennial black-eyed Susan (USDA hardiness zones 5 to 9). This vigorous North American perennial grows 4-7+ feet tall and 2-3 feet wide. ‘Herbstsonne’ is also synonymous with the cultivar ‘Autumn Sun’. Formerly […]