The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Havre you can determine when it's possible to plant painted tongues by looking at the USDA zone info.

Planting Calendar for Painted Tongues

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

It's probably not a good idea to plant painted tongues until after the last frost because they do not do well in cold weather.

The earliest that you can plant painted tongues in Havre is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant painted tongues and expect a good harvest is probably August. Any later than that and your painted tongues may not have a chance to grow to maturity. If you are starting your painted tongues indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Havre. You should expect an average low temperature of -30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Havre is an average and the actual date of last frost is different every year. Half of the time in Havre there is a last frost after May 15 so make sure that you are ready to cover your painted tongues if you have a late frost.

USDA Zone Info for Havre

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Havre

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