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.

By referring to the USDA zone info for Colton it's a good idea to determine when you can 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.

You can plant chervil a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant chervil in Colton 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. You probably don't want to wait any later than that or else your chervil may not have a chance to fully mature. Starting your chervil indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Colton the average date of last frost happens on February 15. 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 may not be accurate from year to year because it is based on the USDA zone info for Colton and it can change quite a bit from year to year. Half of the time in Colton there is a last frost after February 15 so be sure to be ready to cover your chervil in the event of a surprise late frost.

USDA Zone Info for Colton

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 Colton

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