One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when you can plant mustard greens by using the USDA zone info for Cotati.

Planting Calendar for Mustard greens

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

Mustard greens do ok in a little bit of cold which tells us that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant mustard greens in Cotati 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 mustard greens and expect a good harvest is probably October. Any later than that and your mustard greens may not have a chance to grow to maturity. Starting your mustard greens indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Cotati is an average the actual date of last frost is different every year. Half of the time in Cotati last frost occurs after February 15 so always be ready to protect your mustard greens in the event of one of those late frosts.

USDA Zone Info for Cotati

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 Cotati

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