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

The USDA zone info for Devils Lake should be used to estimate when it's the best time to plant missouri primrose.

Planting Calendar for Missouri Primrose

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

Missouri Primrose tend to make it in moderate cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant missouri primrose in Devils Lake 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 missouri primrose and expect a good harvest is probably August. You probably don't want to wait any later than that or else your missouri primrose may not have a chance to really do well. You can get started a little bit earlier by starting your missouri primrose indoors.

Last Frost Date

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

Since the USDA zone info for Devils Lake may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Devils Lake there is a last frost after May 15 be ready to cover your missouri primrose in the event of a surprise late frost.

USDA Zone Info for Devils Lake

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 Devils Lake

You may be interested in your other planting guides for Devils Lake.