The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant chives in Mandan should be determined by looking at the USDA zone info.

Planting Calendar for Chives

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

You can plant chives earlier in the year because they are very cold tolerant.

The earliest that you can plant chives in Mandan 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 chives and expect a good harvest is probably August. You probably don't want to wait any later than that or else your chives may not have a chance to grow to maturity. You can get started a little bit earlier by starting your chives indoors.

Last Frost Date

In Mandan the average date of last frost happens on May 15. In the coldest months of winter you can expect an average low temperature of -30°F.

Since the USDA zone info for Mandan is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Mandan it frosts late in the year after May 15 so make sure that you are ready to cover your chives if you have a surprise late frost.

USDA Zone Info for Mandan

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 Mandan

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