How does my garlic know it is Spring?

Question

Every year about this time, I notice that certain vegetables (garlic, onions, etc.) that I have had in my refrigerator some how know it is Spring? They begin to grow roots or green stems or leaves as if planted in the ground. They do not do this during the Winter or Summer. How is this possible if they are in the refrigerator that is not opened to the outside environment? What physical signs do they have in this closed chamber under such controlled conditions?

Answer 1

the same way my male dog knows its breeding season even tho all my females are fixed....genetics. that and the fact that most bulb plants such as garlic start to root within a time set imprinted in their genetics.

Answer 2

You really gave me something worth thinking about other than our presidential candidates blunders.

Answer 3

the detect temperature, and they have photo cells that pick up light and tell the month it is, like a little solar clock. also look at the link I added.