Umbrella PalmText Box: UMBRELLA PALM (Cyperus alternifolius) Grows in clumps. The top of the stems have bright green grass like leaves, that look like umbrellas. Can grow 6 ft. Water depth 2-6 inches. Great indoor plant as well. Tolerates shade. 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.