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The genus Tradescantia
is named for John Tradescant the Elder, who was an English gardener and
plant collector. Two of the most often
seen species in the eastern United
States are Tradescantia ohiensis (Ohio Spiderwort) and Tradescantia virginiana (Virginia Spiderwort). Examples of the latter were collected and
taken to England
in the 1600s, where they became a common garden flower. Their popular name, Spiderwort, probably came
from either their long, leg-like leaves or the web-like secretions that ooze from
their cut stems.
Spiderworts are easy to grow, but they tend to die out in
mid-summer in my Mid Atlantic garden.
They re-bloom in the fall; then die back in winter. The variety I grow there is Tradescantia Blue Stone, a Spiderwort
cultivar. To learn more about Tradescantia and its cultivars, please
read this nine page pdf
from the Chicago Botanic Garden .