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

By looking at the USDA zone info for East Grand Forks it's a good idea to figure out when it's a good idea to plant peonies.

Planting Calendar for Peonies

Frost tolerance for peonies:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant peonies a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant peonies in East Grand Forks is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is May 15 in East Grand Forks. You can expect an average low temperature of -30°F in the coldest months of winter.

Since the USDA zone info for East Grand Forks may not be accurate from year to year the actual date of last frost is different every year. Half of the time in East Grand Forks last frost occurs after May 15 so make sure that you are prepared to protect your peonies if you have one of those late frosts.

USDA Zone Info for East Grand Forks

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 East Grand Forks

You may be interested in your other planting guides for East Grand Forks.