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This plant is said to grow outdoors in the following regions:
San Bernardino, California
Miami, Florida
Baton Rouge, Louisiana
B. 'Black Velvet' is a rhizomatous type with parents B. 'Joe Hayden' x unknown rhizomatous. Hybridized by Stanford. in Texas 1967
B. 'Black Velvet' is a rhizomatous type with parents B. 'Joe Hayden' x unknown rhizomatous. Hybridized by Stanford. in Texas 1967