How often do I water my box garden?

I have planted some vegetables in garden boxes in my patio. The boxes are about 3 feet deep but I'm sure the soil dries out quickly because they are above wooden boxes above the surface. They are in our patio which gets pretty good sun for a few hours each day. Morning sun along one wall and afternoon sun along another. The peas seem to be doing well but are beginning to brown up and wilt along the bottom so I don't know if it is just too hot now for peas or I'm not watering enough.
Do I need to water deeper, longer, or just more often during the day?

  5 answers
Your comment...