- 1). Combine equal measures of horticultural grit and coir to create a moisture retentive sprouting mix for the taro root. Fill a 2-gallon nursery container three-quarters full with the horticultural grit and coir mixture.
- 2). Lay the taro root on the surface of the horticultural grit and coir mixture and press it slightly to anchor it. Orient the taro root so it lies lengthwise along the surface.
- 3). Fill in around the taro root with some additional grit and coir mixture. Leave the top 3/4-inch of the tuber exposed to the light. Firm the sprouting mix around the taro root with your hands. Water the taro to a depth of 2 inches.
- 4). Place the container outdoors in a sunny position with no more than four hours of direct sunlight per day and temperatures above 70 degrees Fahrenheit. Water the taro to a depth of 2 inches every week.
- 5). Look for signs of sprouting in 20 to 30 days. Transplant the sprouted taro to a permanent bed in USDA zones 9 and above, or keep it in its original pot and move it indoors before the first frost.
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