Planting the tubers
Getting started -- You may plant in individual, small containers at least 2 inches (5 cm) tall and wide. Use pots with drainage holes
For soil, use a well draining mix high in organic matter. A typical mix is 2 parts potting soil to 1 part perlite or coarse sand. An alternate mix is 1 part perlite to 1 part coir fiber, with some all-purpose fertilizer mixed in.
Fill the pots with soil, place the tuber on the surface, and bury it so the top of the tuber is level with the soil surface. Add water until the soil is evenly moist (but not fully saturated). It's ok if the top of the tuber is visible.
Until they sprout, ensure that the surface soil stays moist. A plastic dome or bag is good for maintaining moisture, but leave it open a slightly to allow some fresh air in.
Keep the pots between 65 to 78 degrees F (18-26°C). Avoid letting them get warmer than this, but a little cooler at night is ok. I recommend placing a minimum/maximum thermometer near the pots.
A fluorescent or LED bulb kept 4 inches (10 cm) away provides the right amount of
light. Protect from direct sun.
Watering -- Aim to keep the soil moist, but not soggy. Never let it dry out completely. You may use a moisture meter probe to monitor the moisture levels down in the root zone.
Fertilizing -- Feed a week after they sprout, and then about every 2
months with an all-purpose fertilizer that contains micronutrients.
Over about 40-45% humidity is best.
If it seems to suffer from low humidity indoors, consider using an ultrasonic room humidifier,
home improvement stores and some thrift shops.
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