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.

You can figure out when you can plant spearmint in Dinuba by reviewing the USDA zone info.

Planting Calendar for Spearmint

Frost tolerance for spearmint:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Spearmint are very cold tolerant which means that you can plant them a quite a bit earlier than more sensitive plants.

The earliest that you can plant spearmint in Dinuba 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 spearmint and expect a good harvest is probably October. Any later than that and your spearmint may not have a chance to really do well. You can get started a couple of weeks earlier by starting your spearmint indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Dinuba. You should expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Dinuba may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Dinuba last frost occurs after February 15 be ready to cover your spearmint if you have one of those late frosts.

USDA Zone Info for Dinuba

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 Dinuba

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