Hi Jax,
So nice to meet you, welcome to NGA. I see you already received some very good advice on growing semps.
Lucy is correct, semps don't like living indoors. You can place them outside, gradually increasing the amount of sun they get. In the UK they should grow well in full sun. If I am right, you get summer rain and overcast skies in the summer? Seems like you would rarely have to water in those conditions?
Al gave a good explanation on how it works. Too much water for newly planted semps can cause trouble with growing new roots, can stress the plant so that things can start shutting down, and the plant dies.
Al is also correct about cutting the center out of a blooming rosette. The best results come from cutting the center out early in the process. Yours might still produce offsets. Some of them might bloom, hopefully some will be normal and grow to maturity.
Here is a planting using some of Al's method. Akadama mixed with gravel, sand and a small amount of compost. It has been in this shallow bowl for 5 years.
Al, it is good to see you.
