Horse Ranch: Can I plant something in the public ground planters?

It's the same thing with the planters in the "community garden" in Henford. It's a real shame and a waste. I love the idea of having planter boxes out in the world, and I would use them all the time if they worked, but... here we are. At least with the base game worlds, there were already plants in the boxes, but here they start off empty and stay empty. The only thing you can do with them is buy seeds.