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What You Need to Know About Growing Garlic

Garlic is a long season crop, taking 90-270 days to mature from sowing to harvest! To achieve large garlic bulbs, the plant requires a period of vernalization, or cold treatment, which is why bulbing garlic only grows well in regions that have winters with over 40 days of temps below 50F and explains why we plant garlic in the FALL in these regions!

For these cold winter regions, October is a great time for planting garlic! Garlic is a special plant in that it requires a period of cold treatment or “vernalization” to initiate bulbing. Garlic is a long season crop and will remain in place where planted from October until mid-summer of the following season when its harvested.

Here are a few tips to help you get to know this delicious kitchen staple:


Long season crop: 

There is no real definition of what a long season crop is. 

But I use this term to define a crop that you can only get one harvest of per calendar year of. 

This is generally any crop needing 90+ days or so from sowing to maturity. Examples of long season crops are bulbing onions, garlic, tomatoes, and artichoke.


Exposure of seeds or plants to a period of cold temperatures to promote bulbing or flowering.

A few plants that require a vernalization period to produce are garlic, daffodils, peach trees, and winter barley.