One of the first steps you take when you are estimating 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.

The USDA zone info for Grass Valley can be looked at to figure out when to plant matricaria.

Planting Calendar for Matricaria

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

Matricaria are one of those plants that can tolerate a little bit of cold weather which means that you can start planting them earlier than more sensitive plants.

The earliest that you can plant matricaria in Grass Valley 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 matricaria and expect a good harvest is probably October. Any later than that and your matricaria may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your matricaria indoors.

Last Frost Date

On average the last frost is on February 15 in Grass Valley. It might get as low as 20°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Grass Valley may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Grass Valley last frost occurs after February 15 so always be ready to cover your matricaria if you have a surprise late frost.

USDA Zone Info for Grass Valley

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Grass Valley

You may be interested in your other planting guides for Grass Valley.