Can anything be done with the acorn dropped by trees?
Acorns can be planted right on the grass. No need to hoe it. Soon after, they'll grow into a full-sized tree.
You don't need to hoe the ground to plant acorns. Just plop them right on the grass and it should work.
Put them on normal grass and soon they'll be fully-grown trees. You can't plant them on dirt, sand and farm plots.