Are (oak tree) acorns okay to compost? I'm concerned about the tannic acid content of the acorns. If acorns are okay, is there a limit or ratio of acorns that is too high? And if compost has a sizable acorn content, is there any usage that this compost would not be advisable for?
Certified GKH Gardening Expert
You can compost them. As long as you have the "green" material in the compost to balance them (they would be a brown material), you cannot have too many.