Taro ImperialText Box: TARO IMPERIAL (Colocasia antiquorum) Black and green variegated leaves. Very Exotic. Can grow up to 3 feet. Prefer wet soil. Bog plant Can also be grown in a regular garden, but important to keep soil wet Weather permitting we ship the tropical marginal and bog plants April through September. OUR MARGINAL AND BOG PLANTS ARE EITHER IN 2 INCH POTS OR BAREROOT Fuller plants available in 4 inch pots, must purchase 3 minimum Tropical marginal and bog plants will not survive the cold temperatures, if you live in zone 7 and below you might consider them to be annuals or bring them indoors in the winter.