Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant flax in Windsor should be determined by reviewing 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.

Flax can survive in mild cold which means that you can plant them a bit earlier in the year than other frost tender plants.

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

The last month that you can plant flax and expect a good harvest is probably September. If you wait any later than that and your flax may not have a chance to fully mature. You can get started a few weeks earlier by starting your flax indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Windsor. You can expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Windsor may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Windsor it frosts late in the year after April 15 be ready to cover your flax if you have a late frost.

USDA Zone Info for Windsor

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Windsor

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