it's like they know when they're growing naturally...can't describe why that is but i have moved many plants from 24/0 into 18/6 then outdoors in the spring and never had them flower prematurely. never had a hermie either. the only thing i suggest watching is when moving them into the sun after being raised indoors. it should be done gradually...starting them in the shade (under a tree is good) and slowly moving them into full sunlight over a week or so...otherwise the sun may burn em.