One of the best tools that you have as gardeners to help us figure out 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.

You can figure out when you can plant missouri primrose in Cottage Grove by using the USDA zone info.

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 mild cold which tells us 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 Cottage Grove 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. Any later than that and your missouri primrose may not have a chance to really do well. You can get started a few weeks earlier by starting your missouri primrose indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Cottage Grove. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Cottage Grove is not always accurate the actual date of last frost changes from year to year. Since half of the time in Cottage Grove last frost occurs after May 15 be ready to protect your missouri primrose if you have a late frost.

USDA Zone Info for Cottage Grove

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Cottage Grove

You may be interested in your other planting guides for Cottage Grove.