Rare plants kept in cultivation, one garden at a time. Every plant in this collection is nursery-propagated, never wild-collected, and many are species of genuine conservation concern: Southeastern endemics with shrinking wild ranges, and old-world rarities held now by only a handful of growers. To plant one is a small, quiet act of keeping a species in the world.
Hibiscus dasycalyx is one of the rarest wildflowers in the country, described only in 1968, and even then from a mere handful of sites in the bottomlands of east Texas, in Houston, Trinity, and Cherokee counties, along the Neches, Angelina, and Trinity rivers. The total wild population has been estimated in the low thousands. Whole seasons of botanical fieldwork across the Southeast have turned up fewer plants than a single good nursery bed.
Important: This plant is sold within South Carolina only.In the high-gradient streams of the southern Appalachians, the Gauley, the Bluestone, the Greenbrier, scattered tributaries of the New River, and a handful of similar second- and third-order rivers, grows a shrub that holds on to rocky bars and scoured banks where almost nothing else can. This is Spiraea virginiana, the Appalachian spiraea, a plant that evolved alongside the violent flood regime of these mountain rivers and depends on that disturbance. The floods scour competing vegetation off the banks, expose mineral soil for germination, and break off rhizome fragments that float downstream to colonize new sites. Where the rivers were dammed, the floods stopped, and the spiraea began to disappear.
Clematis morefieldii, Morefield's leather flower, is one of the rarest of the native clematis, a delicate climbing vine known in the wild from only a small pocket of limestone country around Huntsville, Alabama, and just into Tennessee. Like the other leather flowers, this species trades broad, flat blooms for small, nodding, urn-shaped flowers, here a soft, downy pink, their sepal tips curling back at the rim. The stems and leaves carry a fine coat of whitish hairs, giving the whole plant a soft, silvered look.
A small shrub of the Cumberland Plateau, found only on the flood-scoured cobble and sand bars of three river systems in eastern Tennessee and a sliver of Kentucky: the Big South Fork of the Cumberland, the Caney Fork, and the Obed. The rest of the Conradina clan keeps to the sand scrub of Florida and the Gulf Coast of Alabama, sun-baked and semitropical. This species took a different path, north into the cooler uplands, and the cold-hardiness that came with the move is the gift to gardens farther north.
