I have an ornamental red-blooming horse chestnut tree in my backyard. I would rather have a fruit tree in its place, but my parents paid a lot of money for that thing, so felling it is not an option anytime soon. At least it's pretty for a few weeks, and the bumblebees love it. I use the leaves for mulching our rhododendron bushes (they like acidic soil) and to protect my mint and strawberry patches from the worst frost. But I haven't found anything useful to do with the chestnuts yet. They don't compost well. I could carry them into the nearby woods to feed the deer, but last winter for example we had all of 2 weeks of frost and snow, which I spent being bedridden with bronchitis, so the bucket full I collected last year is now drying/molding and probably won't be edible next winter. Besides, what little hard-won fertility my soil has is based on not letting any organic matter (other than human excrements - composting toilets are illegal here) escape our property for as long as I've been alive. So, any suggestions what I could be doing with the chestnuts?