How do I prune my forsythia to encourage bushy growth at the bottom? It is extremely healthy-looking at the top and ends, but I want to stop it from becoming leggy/wiry at the bottom. I don't want the branches long and extended, with the leaves only at the extremities. It will remain in a pot.
I don't want it to look like the one in this question that I posted last year: Why does this forsythia have such sparse leaves?