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When to Plant Missouri Primrose in Mount Prospect, IL

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.

By referring to the USDA zone info for Mount Prospect it's a good idea to determine when it's possible 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 can survive in mild cold which means that you can plant them a little earlier in the year than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant missouri primrose
Possibly ok, but a risky time to plant missouri primrose
Probably not a good time to plant missouri primrose

The earliest that you can plant missouri primrose in Mount Prospect 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. If you wait any later than that and your missouri primrose may not have a chance to grow to maturity. Starting your missouri primrose indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Mount Prospect. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Mount Prospect is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Mount Prospect you get a frost after April 15 be ready to cover your missouri primrose if you have a surprise late frost.

USDA Zone Info for Mount Prospect

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 Mount Prospect

You may be interested in your other planting guides for Mount Prospect.