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.

By checking out the USDA zone info for Lenexa it's possible to estimate when it's a good idea 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 ok in pretty solid cold which means that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant spearmint in Lenexa 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 spearmint and expect a good harvest is probably September. If you wait any later than that and your spearmint may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your spearmint indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Lenexa. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Lenexa is an average the actual date of last frost is different every year. Half of the time in Lenexa you get surprised by a frost after April 15 so always be ready to protect your spearmint in the event of a late frost.

USDA Zone Info for Lenexa

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Lenexa

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