My outdoor plants are around three feet tall and in five gallon smart pots. I've been watering them twice per day, but recently it hasn't been enough. They are bone dry and wilting less than five hours after watering them. I'm watering them until there's 20% runoff, but they just dry out so fast in the 100+ degree (F) heat. I know the general rule of thumb is one foot of growth per gallon for smart pots, but I'm wondering if it would be worth it for me to transplant them to 10 gallon pots? Will it help them retain water or will they dry out just as fast in bigger pots? Also, would it significantly lower my yield if I put them in the shade?