Silkworms need no water but must be fed mulberry leaves. Perfect timing as you get to eat the mulberries as you pick the leaves. They live for only a few weeks and then spin a silk cocoon, hatch and breed and give you eggs for next year. Instructions here http://www.permaculturevisions.com/silkworms.htm
Silk Worms for sale $10/box or 100 eggs posted Contact us pwi@permaculturevisions.org or 0413539744