I am growing outdoors. My plants look good except on one of them, just the top is wilting. I only water every 7 or 8 days. They are in 25 gallon smart pots. Please advise.
7 to 8 days sounds like a long time between watering. I usually go 3 to 4. One thing I've noticed is that plants can use water at different rates, even the same strain, same pots, started at the same time. Go figure....
Take gallon milk jugs and place 2-3 per plant at the plants base and fill them up and poke a pin hole in them, try lid off or on for a slower drip. Its a poor mans irrigation system.