I've been growing from seed for about 13 months now and I need some advice on repotting. My current practice is to move from grex container to common pot of 5 to 10 and then to individual pots. As I am now finding out, a seedling is going to be pretty much ready for an individual 5" pot in 8-12 months.

I do cull heavily going from grex container to common pots just because I can't (or don't want to) grow out some of the big grexes. I usually do the move from grex container to common pot whenever I find there is serious crowding or when some are just getting too big for the grex container. I sometimes just directly cull in the grex container so that the grex container becomes a common pot of up to 10 seedlings.

The move to individual pots is usually easy enough to do, but I'm not sure how long I should wait. Right now I'm mostly waiting for the diameter of the leaves to be pretty close to 5 inches and then I put them in a 5 inch pot. For example, I think the orlandianas in the pot below are not quite ready and they aren't all that crowded, but I think I could go to an individual pot if I wanted.

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