I've got some basil plants outside (Spicy Globe Bush), which have gone to seed. I'm wondering if there's any chance the seeds will survive a northern (USA) winter and germinate next year. Is there?

  • Isn't the risk is that they germinate and then die off with another frost? Commented Oct 12, 2017 at 5:23
  • 1
    This question (and its associated answer) may be of interest. Commented Oct 12, 2017 at 15:20
  • FYI, I've grown it a number of times, and I don't believe it's ever re-seeded when given the opportunity. Summer savory will, though. I'm in zone 6 in a Bsk climate with hot summers. Commented Jun 2, 2022 at 23:09

2 Answers 2


You should harvest the seed and keep in a cold but less freezing place (shelter, car box).

It is in any case good to change place of the basil, and it will also simplify spring work.

So I would harvest now the seeds, keep in cold, and in late winter I would pot them (e.g. in your house). Only later, I would put in full soil. This also helps you to have earlier basil leaves. The plant in any case endure the entire season.


I can't tell you the effect of certain temps on the seeds, but I do know that basil seeds need cold over the winter in order to germinate. I'd take some and follow Giacomo's advice, but I'd also shake some in a pot, on top of the soil, and put a plastic bag over the top to keep out leaves and other seeds till the spring. Then see what they do.

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