I've just put mine out, I'm going to let them ramble round the sweetcorn. The ones I tried last year did well grown that way, but I planted them too late. They're a lot maller than thouse though, probably because I had them in a crowded mini-greenhouse, which meant small pots, then put them under cloches. The pumpkins I left in the mini-greenhouse have grown far more than the ones I put out, but I'm not sure why.