Step five: Plant out seedlings, tossing a handful of Biofish fertilizer into each deeply dug hole. Water in, and place your signs. Do not forget to place fencing around the bed to protect from animal intrusions (which I figured out this August, after our third heat wave): Establish a watering system that can be adjusted bed by bed, not one hose running through three beds. When you pull the late potatoes from the other beds, you have to hand water the remaining bed, which is bad. I have some aphid damage because the plants were water stressed in early September.