Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Boynton Beach can be reviewed to figure out when it's the best time to plant spearmint.

Planting Calendar for Spearmint

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

Spearmint do well in quite a bit of cold which means that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant spearmint in Boynton Beach 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 fully mature. Starting your spearmint indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on January 31 in Boynton Beach. In the coldest months of winter you should expect an average low temperature of 35°F.

Remember that USDA zone info for Boynton Beach is not always accurate and the actual date of last frost changes from year to year. Half of the time in Boynton Beach last frost occurs after January 31 so make sure that you are prepared to cover your spearmint in the event of a surprise late frost.

USDA Zone Info for Boynton Beach

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Boynton Beach

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