One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Windsor you can figure out when to plant flax by using the USDA zone info.

Planting Calendar for Flax

Frost tolerance for flax:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since flax do well in moderate cold you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant flax in Windsor is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant flax and expect a good harvest is probably October. Any later than that and your flax may not have a chance to really do well. Starting your flax indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Windsor. It might get as low as 25°F during the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Windsor and it can change quite a bit from year to year. Half of the time in Windsor you get surprised by a frost after February 15 so just be sure to be ready to cover your flax if you have a late frost.

USDA Zone Info for Windsor

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Windsor

You may be interested in your other planting guides for Windsor.