Before planting the elephant ear tuber, wait until the danger of frost is over and the temperature averages 45ºF (7ºC) or more. This listing is for elephant ear bulbs that average the size of lemons. The leaves average 12 inches in length and 10 inches across. The adult elephant ear plant will need at least 3 feet (1 meter) of space, at a bare minimum, for proper growth and show in a relatively shady area. A really healthy plant may need as much as 5 feet (1-2 meters) of space. Dig a hole, and if possible, in rich, organic soil about 3-4 times the size of the tuber. Refill the hole as necessary with loose soil enough so that the tuber will be about 1-2 inches (2.5 to 5 cm.) below ground level when planted. Elephant ear plants perform reasonably well in average soil. Periodic fertilization (every 2 to 4 weeks) with a common plant fertilizer will help them do their best. Good drainage is a big plus, but the plant should not be left to go dry for any length of time. When this happens, the droopy leaves will give early enough warning for the plant to recover nicely if watered within a day. At the peak of the warm season, large, beautifully lush foliage can grow to heights of 3 to 5 feet (1-1.6 meters). If any leaves turn brown at the edges, just cut away and new ones will certainly grow. The plant will start having difficulties when the temperature falls below 50ºF (9-10ºC) or so for more than a few days. Before freezing temperatures take over, the tuber (root system) will have to be dug up. A healthy plant will have developed multiple new tubers during the growing season. It's best to leave these intact during storage. Separation will not do significant damage though.
These bulbs can be shipped internationally but buyers should be aware if these are allowed in your country and that shipment may take up to 2 weeks depending on the Postal Service.