Mulch Instead of Dirt
Can I grow vegetables and flowers in mulch that I have put into pots instead of dirt?
Certified GKH Gardening Expert
While it is possible for many plants to grow in mulch, vegetables (especially those in containers) require specific nutrients that may not be present in the mulch alone. I would at least mix in some soil with the mulch. Of course, you could always experiment. Try growing some with only mulch and others with soil or soil/mulch mix.