My kids each have a Miracle Gro Kids Mini Greenhouse, with 5 seeds in each. Right now, 2 of the greenhouses have growth. They are still very tiny, but I want to make sure they survive and thrive.
This is what they look like right now:
I've always heard that repotting plants should wait until they're at least an inch tall ... and I usually wouldn't argue that. My issue, however, is that these little trays are very shallow and only have 1/2 inch of the "special soil" at the deepest point. And I don't see 5 plants lasting very long in a 3 1/2" x 3 1/2" x 1/2" container.
When can I / should I move them to larger pots? The instructions included with the kits didn't say anything about repotting.
Also, I've noticed that even though I removed their lids, they are still growing mold (looks to be grayish white, sparse and thin) ... I think it's due to whatever "fast growth" fertilizers are in the special soil that was included. Is this something I can fix, or do I need to get the plants/seeds out of that soil?