Blue Bell CompactaText Box: BLUE BELL COMPACTA (Ruellia brittoniana, ‘Katie’ ) Compact version of Blue Bell. Can grow to 12 inches . Prefers wet soil bog plant 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.