One of the best tools that you have as gardeners to help us determine 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.

A common way of determining when to plant spearmint is to check out the USDA zone info for Kearney.

Planting Calendar for Spearmint

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

You can plant spearmint quite a bit earlier in the year because they are very cold tolerant.

The earliest that you can plant spearmint in Kearney 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 really do well. Starting your spearmint indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Kearney the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Kearney may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Kearney it frosts late in the year after April 15 so make sure that you are ready to cover your spearmint if you have a surprise late frost.

USDA Zone Info for Kearney

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Kearney

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