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.

The first opportunity to plant mustard in Inverness can be determined by referring to the USDA zone info.

Planting Calendar for Mustard

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

Since mustard are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant mustard in Inverness 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 really do well. Starting your mustard indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Inverness. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Inverness is just an average and the actual date of last frost will vary from year to year. Since half of the time in Inverness you get surprised by a frost after February 15 be ready to cover your mustard if you have one of those late frosts.

USDA Zone Info for Inverness

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 Inverness

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