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

A way of figuring out when it's a good idea to plant mustard is to refer to the USDA zone info for Grover Beach.

Planting Calendar for Mustard

Frost tolerance for mustard:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Mustard are not cold tolerant which means that you need to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant mustard in Grover Beach 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 mustard and expect a good harvest is probably September. You probably don't want to wait any later than that or else your mustard may not have a chance to really do well. You can get started a few weeks earlier by starting your mustard indoors.

Last Frost Date

The average date of last frost is January 31 in Grover Beach. You can expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Grover Beach is an average and the actual date of last frost is different every year. Since half of the time in Grover Beach you get surprised by a frost after January 31 be ready to protect your mustard if you have one of those late frosts.

USDA Zone Info for Grover Beach

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

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

Plants to Grow in Grover Beach

You may be interested in your other planting guides for Grover Beach.