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How can I stimulate a biennial like a leek to flower? Could I just pop it in the fridge or freezer (still in its pot) for a couple weeks and take it out again? Or just change the photoperiod?
My old leek seeds have had absolute shit germination this year, and now I'm out of them, so I'm taking one leek indoors under grow lights to try to get it to flower before next spring so I don't have to buy more seeds.