raised garden frame

Question

I have a timber raised garden frame in full sun (3 meters/1. 5 meters/400 mils. deep). What can I fill it with allowing for drainage to grow lettuce, silver beet, etc. ? Thank you.
Charlie

Answer 1

If you mean it is an elevated bed (self contained) then it is typical to place a layer of rocks or pebbles at the base then cover this with compost or a soilless mix. I have even seen people use used coffee grounds as a growing medium.

If you mean a raised bed placed on the ground, the ground will serve as drainage and you can fill with compost or good quality top soil.