Period Of Cold Before Germination
Why do some plants need a period of cold before germination? Is it simply because they need time to recuperate for the next growing season? Also, will beans such as Lima or Kidney need this?
Certified GKH Gardening Expert
Mature plants and bulbs typically need a cold period to rest, as you said. Seeds, on the other hand, use it as a survival trait. In order to prevent the seed from germinating before winter comes, it is dormant before it goes through a cold period. Going through this cold period tells the seed that it is safe to germinate now that winter has passed.
No, beans do not need this cold period.