Thanks Baja, I though it was loving the extra water. At first it rapidly grew an inch then flowered. I drained it daily for water build up. I moved the others back inside in dryer conditions. Caught me off guard. I should have collected the seeds. How stupid of me. I enjoy growing from seed as well. My sprials are all filled with seed now. I will collect them and see. It was right next to the rotted one.
Forgot to tell you, well done.
Stush