Oh, that's a good idea, that changes things! And I have access to HOT horse manure!!! Wow, next year may be a different story.
Yes, Joanne, your GH is very neat and tidy. I had to move into mine as soon as they got it up, without even being able to put down a floor so all I have so far is cardboard. I'm probably going to do mulch, unless there's a reason not to? The one at my son's has pea gravel under the shelves and bricks in middle and open ground for planting on the end. I do have open ground for planting, but don't have patience to put in the framing and bricks and sand, etc...I'm not a fan of pea gravel, too hard to walk on.