How soon can I plant after adding compost? Dig in plenty of compost and well-rotted manure a couple of weeks before planting out vegie patches or garden beds. Let it all break down for a fortnight or so, then start planting.
How long should compost sit before planting? Wait at least two weeks before turning the pile, to allow the center of the pile to “heat up” and decompose. Once the pile has cooled in the center, decomposition of the materials has taken place.