Cypripedium Ulla Silkens Aster small 1' wide clump composed

small 1' wide clump composed of dozens of fat

our 8-year-old specimen is 7' tall and 10' across and survived 0 degrees F

I would recommend against using it anywhere south of Zone 8

or more commonly now a day

We selected Epimedium 'Golden Earrings' as the most floriferous of the Epimedium lishihchenii clones we grow

Cypripedium Ulla Silkens Aster small 1' wide clump composedCypripedium 'Ulla Silkens' is a stunning 1996 hybrid from Svante Malmgren. This vigorous hybrid strain is a cross of the American Cypripedium reginae x the rare Chinese Cypripedium flavum. Cypripedium 'Ulla Silkens' is much easier to grow than its parents and will take a good bit of sun in cooler climates, but still prefers moist alkaline soils. The 2' tall flowering stalks that appear in mid to late June are topped with huge slippers of burgundy and