‘Thailand Giant’ elephant's ears (Colocasia esculenta ‘Thailand Giant’) Genus:  Colocasia ‘Thailand Giant’ is, undoubtedly, the plant with the largest foliage in the aroid (Araceae) family. It started appearing in gardens across the country within the last decade. Leaves emerge in mid- to late spring, reaching more than 6 feet long and 3 feet wide in one season under optimal conditions. I’ve been digging out and overwintering a plant for three years now, but this past spring, I found a bud that had been left behind and survived winter; it grew a whopping 8 feet tall and wide in its first year in my Zone 7 garden on the south side of a brick wall that reflects heat and winter sun. Children and silly adults love to compare their ears to those of ‘Thailand Giant’ . -Adrienne Roethling, Elephant's Ears, Fine Gardening issue #148, page 57 Noteworthy Characteristics:  Giant, stunning foliage Care:  Gardeners in cool hardiness zones may overwinter plant’s tubers indoors covered by peat moss during winter, after the leaves have been desiccated by frost.
Propagation:  Plant tubers when soil is consistently around 70°F. Offspring shoots can be transplanted.

Overview

Height 9 ft. Spread 12 ft. Growth Habit Spreads Growth Pace Fast Grower Light Full Sun Only Moisture Medium Moisture Maintenance Low Characteristics Showy Foliage Foliage Color Green Type Tropicals