Plumleaf Azalea (Rhododendron prunifolium) From my garden here is a look today (July 28th) at plumleaf azalea (Rhododendron prunifolium). Plumleaf is an Alabama native, and its orangey red flowers has been growing in my east Tennessee garden for the past 15+ years. It is hardy to zone 5-b (- 15°F) which includes most of the mid-Atlantic and southern New England states. Plumleaf handles Southern […]
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Move Over AJ, Here Comes T-Rex
For nearly half a century, ‘Autumn Joy’ has been the leading “stonecrop” or “live forever” sedum cultivar planted. More than once I’ve heard this saying: “if Autumn Joy won’t grow in your garden, you should try another hobby. ‘T-Rex’ is a terrific new hybrid and ‘Autumn Joy’ is one of its parents. ‘T Rex’ has […]
Torch Lily Has Long Bloom Life
Torch lily (Kniphofia spp.), aka “red hot poker”, is an easy to grow long-lived perennial from South Africa. Its colorful floral spike (and a little imagination) resembles a fiery torch or sizzling poker, visited often by hummingbirds, bees and butterflies. New cultivars are mostly hybrids and vary in plant height and flower color. Starting in […]
Galinsoga -The Gardener’s Weed
Thirty plus years ago a gardening friend passed along this tidbit: “galinsoga (Galinsoga parviflora) is the gardener’s weed”. Galinsoga grows only in cultivated soils such as in your vegetable and/or flower garden from part shade to full sun. It prefers moist soil but grows almost anywhere, even between cracks in a sidewalk. Its thin leaves may wilt […]
Invite Sonata Cosmos Into Flower Beds
Over the past few years a flower bed containing cosmos (Cosmos bipinnatus) has become a rare sight across the Southern Appalachian region (USDA zones 6 and 7). Not so, at the recently visited BuGa National Gardening Show 2011 in Koblenz, Germany. Called by some “Mexican asters”, cosmos produces big 3- inch wide red, white, pink […]
Rosebay Rhododendron for Cool Shady Landscapes
Rosebay Rhododendron (Rhododendron maximum) grows in dense woodland shade along cool mountain streams and on moist, rocky slopes. This Southern Appalachian native is extremely winter hardy to -15° to -20° F. It is a late-season bloomer reaching its peak around late June. Rosebay grows large, 15 to 20 feet in height. On some sites it […]
Where Can I Buy That?
Let’s face it – rare and unusual plants are not likely for sale at your local garden center. Full service garden centers located in large metropolitan areas may sell one or two.The internet has become the best plant finding source. Some on-line purveyors may carry a rare item, but not sell it in large quantities. High sticker shock may chase you […]
Summer Pruning of Oakleaf and Bigleaf Hydrangeas
Bigleaf or “mophead” hydrangeas (Hydrangea macrophylla) tend to get tall and leggy, and outgrow their garden space. Our native oakleaf hydrangeas (Hydrangea quercifolia) are pruned as blooms quality declines. Remove or “deadhead” all withered or faded flowers. Main pruning time for these two species is from mid-June thru mid-August. Mopheads may rebloom if they had […]
Leather Flower Clematis- Hot Pink Summer Flowering Vine
Leather flower (Clematis glaucophylla) is native to moist woodlands in the Southeastern U.S. This lovely flowering vine is covered with one inch hot pink flowers tipped in yellow. The solitary, 1- inch bell shaped flowers are on 6- inch long stalks which reach out for support. It is called “leather flower” because the petals are […]
Calliope™ Dark Red Geranium- One of the Best
Garden performance is very important. Calliope™ Dark Red geraniums have it!! Calliope geraniums are interspecific hybrids with zonal-type leaves and huge vibrant red flowers. Plant breeders crossed ivy geraniums (the kind commonly used as hanging baskets) and zonal geraniums (found growing in pots, window boxes, and as bedding plants). Calliope is a vigorous grower with a mounding to semi-trailing […]

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