One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of figuring out when you can plant new zealand spinach is to check out the USDA zone info for Mandan.

Planting Calendar for New Zealand spinach

Frost tolerance for new zealand spinach:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant new zealand spinach a little bit earlier in the year because they are moderately cold tolerant.

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

Last Frost Date

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

Since the USDA zone info for Mandan is an average the actual date of last frost is different every year. Since half of the time in Mandan last frost occurs after May 15 be ready to cover your new zealand spinach in the event of one of those late frosts.

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.