Raised bed on top of walnut tree stump
I am new to gardening, but would like to try my hand at growing veggies in a raised bed this year. I have a black walnut tree stump exactly where I want the raised bed to be, and I was wondering if it would kill my tomatoes, peppers, etc?
My plan was to cut the stump down to ground level, cover with plywood, plastic, or cardboard, then put my raised bed on top of it. Would this work? Does it matter which of the aforementioned materials I should use? Should I remove the sawdust or would it be ok to incorporate into the soil?
Any advise would be appreciated. Thanks!