Another post about what to fill raised beds with...
We're building new raised beds to replace and enlarge our old beds. They should be finished and ready to fill in the next couple of weeks. I have almost tripled my square footage of growing space, so I won't have enough soil from the old beds to fill all the new ones. I have five large beds and I may be able to fill 2.5 of them. So that is a lot of fill.
Our lot is flat and small, so I have no way of taking native soil from anywhere. We do grow organic, so I have some old compost that is about 2 years old and hasn't been covered, so it's probably leached out all the nutrients by this time. I also have a plastic bin full of kitchen scraps we've been collecting all winter, cardboard, a little old shredded bark mulch, fall leaves and that's about it. I have been thinking I should fill the bottom half of all the beds with layers of raw materials and then use the old healthy organic soil to fill in the top half of all of them, on top of the sheet composting more or less. I was thinking I should be able to plant in them this spring.
So, what do you think? Is this the best approach or is there something different I should try?