Buzzbee's Garden
Spiderwort
Genus: Tradescantia.
Species: Tradescantia virginiana.
Two types of Tradescantia - a dark flowered one, that came from a friend's garden in spring 2004 - often wondered if it was Anderson group? The other, is a paler cultivar that is definitely Anderson: Tradescantia x Andersoniana 'Concord Grape'. The latter came from New Hopetoun gardens in 2008.
