Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of determining when to plant missouri primrose is to use the USDA zone info for Twin Lakes.

Planting Calendar for Missouri Primrose

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

Since missouri primrose do well in moderate cold you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant missouri primrose in Twin Lakes is February. However, you really should wait until March 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 September. You probably don't want to wait any later than that or else your missouri primrose may not have a chance to fully mature. Starting your missouri primrose indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Twin Lakes the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Twin Lakes may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Twin Lakes it frosts late in the year after April 15 be ready to protect your missouri primrose in the event of a surprise late frost.

USDA Zone Info for Twin Lakes

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Twin Lakes

You may be interested in your other planting guides for Twin Lakes.