I am assuming watermellons can be classified as succulents. This year I have a perfect site prepared for for watermellon. I grew four perfect plants in individual pots and transplanted them in the garden with absolutely no root disturbance on 24 May. They looked great for about three days then wilted and died. I tried watering and withholding water to no avail. Now the real question is: I did not condition these plants extensively. I think my wilting problem was lack of about a two weeks conditioning. Can anyone verify this assumption? Anyway I bought four muskmellon and two sugarbaby plants and they are doing well.