I am thinking of buying some plugs wholesale. The catalog says to pot them in 1gallon containers and grow out at a min on 50 degrees. I don't have a greenhouse. My last frost date is Apr. 15. When should I have them arrive. Do the row cover fabrics work well. Does anyone grow there plants like this or is it better to just drive and pick-up gallon size plants wholesale I can't afford to have them delivered, I wont be buying enough.The catalog says they will fill a gallon container in 4-6 weeks. Is it worth the hassle?