One of the first steps you take when you are figuring out your gardening schedule is find your 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.

A way of getting a good idea when it's a good idea to plant mustard is to examine the USDA zone info for Brunswick.

Planting Calendar for Mustard

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

Mustard require warm weather which tells us that you really should wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant mustard in Brunswick is March. However, you really should wait until April 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. Any later than that and your mustard may not have a chance to grow to maturity. Starting your mustard indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Brunswick the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Brunswick is not always accurate the actual date of last frost changes from year to year. Half of the time in Brunswick last frost occurs after February 15 so always be ready to protect your mustard in the event of a surprise late frost.

USDA Zone Info for Brunswick

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 Brunswick

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