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.

You can figure out when you can plant asparagus peas in Havre by looking at the USDA zone info.

Planting Calendar for Asparagus peas

Frost tolerance for asparagus peas:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant asparagus peas a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant asparagus peas in Havre is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant asparagus peas and expect a good harvest is probably August. Any later than that and your asparagus peas may not have a chance to fully mature. Starting your asparagus peas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Havre. It might get as low as -30°F during the coldest months of winter.

Remember that USDA zone info for Havre may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Havre you get surprised by a frost after May 15 so just be sure to be ready to cover your asparagus peas 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.