About 3 weeks ago, I put several drosera leaves in a test tube. 3 weeks later, some are starting to bud, and some aren't. I was wondering how long, after they have budded, can I keep them in the test tubes. I don't want these plants, I'm propagating for a friend, but she's out of the city for a while and I have no pots anyway and it will be easier to just show up at her house with just a test tube instead of a pot.