These bamboo planters are made from 4ft culverts cut in half from my neighbors. They wanted to get rid of them, asked if I wanted them and I said yeah, but only if they're halved. So they had their handyman cut them and I scooped them up with my tractor forks. There's 8 of them planted to a variety of bamboo. I will give the answer in another comment soon. #grownostr #bamboo