Hello, Now I know that in a vegetable garden (raised beds) the nutrients get used up over the summer. But I will be going to the stock yard and get a couple of loads of mature . My question is the big piles that are left over from not being used next spring will they be okay in following years? My plan is to empty half of the raised beds and mix them with new compost in the fall and then in the spring fill up the raised beds again. Or should I go in the fall and get fresh stuff and let it sit over the winter?