Chironex

Miaella, I would suggest leaving them as they are until you put them in the ground in spring. If for no other reason than to minimize transplanting shock. The other reason is that they don't appear too large, so you would be able to take them out and bring them in as you acclimatize them to being in the sun. This is necessary to help them adjust. It should be done for about 2-4 weeks before transplanting them into the ground.

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Scot