I was told those have to be certain types of tomatoes such as cherry? That would make sense since they are indeterminate. I simply let tomato plants drop over from bed or containers, did this last year and it worked Also grew watermelon through horizontal mounted bracing so they could hang through and that also worked but I needed a pails to hold them up after awhile..they grew on the pails with no problem just had to keep an eye on them. When you hang things they tend to obey