I’m not sure that covering your tender plants will be enough protection. Anything tender should be brought inside.
Safe, cold tolerant plants are, pansies/violas, cabbage, broccoli, kale, lettuce, chard.
Unsafe… Tomato, pepper, eggplant, zukes, cukes, etc.
Personally, I won’t plant my own tender cops until “AFTER” traditional Memorial Day, or May 31st.
Peace, Farmer Mike