How to start watercress seeds?
I recieved some watercress seeds from a generous trader last summer and can't remember how to grow them. Can someone help me out? Also, I've read I can put it in the pond pretty early, how early? I can start it in the house, and keep it in here 'til it will survive outside, but keep in mind we can plant peas and spinach the 1st week of May, but tomato plants before Memorial Day is just asking for a late frost :)