2 questions: trellis & sweet potato
First, I want to put up a trellis that will support one sugar baby watermelon vine and one Hale's best canteloupe during the spring and a pumpkin vine in the summer. I'd like to use an arch made from PVC and wire that arches over a 4x4 box. I want to plant shade loving plants under the arch. I'm not sure what size PVC I need to support the weight or what gauge of wire mesh/fencing. Will I need additional support? Any suggestions?
Second, approximately how long does it take to grow sweet potato slips? I've got sweet potatoes sitting in cups of water and am just beginning to see roots sprouting into the water. I haven't seen any growth on top. This problem is probably just my LACK of patience, but dang, hurry up already!