The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's possible to plant flax by reviewing the USDA zone info for Virginia.

Planting Calendar for Flax

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

Flax tend to make it in mild cold which tells us that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant flax and expect a good harvest is probably August. If you wait any later than that and your flax may not have a chance to really do well. If you are starting your flax indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Virginia the average date of last frost happens on May 15. It might get as low as -35°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Virginia and it changes from year to year. Half of the time in Virginia it frosts late in the year after May 15 so be sure to be ready to cover your flax if you have a late frost.

USDA Zone Info for Virginia

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Virginia

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