Building a veg planter
I'm building a veg planter in my garden and I was wondering whether you could answer two questions.
1) The planter will be built onto of some flagging which when the weather is wet will flood to about 2-3 inches. Should I gravel the base of the planter a similar height before adding soil.
2) Should I fill it with compost or top soil, the planter will be quite large and may require a lot of compost bags to fill.