One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Fairfax it's a good idea to determine when to plant chervil.

Planting Calendar for Chervil

Frost tolerance for chervil:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Chervil tend to make it in very little cold which tells us that you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant chervil in Fairfax 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 chervil and expect a good harvest is probably September. Any later than that and your chervil may not have a chance to grow to maturity. You can get started a little bit earlier by starting your chervil indoors.

Last Frost Date

The average date of last frost is February 15 in Fairfax. In the coldest months of winter you should expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Fairfax is an average and the actual date of last frost will vary from year to year. Half of the time in Fairfax you get surprised by a frost after February 15 so just be sure to be ready to protect your chervil if you have a surprise late frost.

USDA Zone Info for Fairfax

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 Fairfax

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