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.

In Morton Grove you can determine when it's a good idea to plant primroses by using the USDA zone info.

Planting Calendar for Primroses

Frost tolerance for primroses:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since primroses are very cold tolerant you can plant them quite a bit earlier in the year than more sensitive plants.

The earliest that you can plant primroses in Morton Grove 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 primroses and expect a good harvest is probably September. If you wait any later than that and your primroses may not have a chance to fully mature. If you are starting your primroses indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Morton Grove. You can expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Morton Grove is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Morton Grove you get surprised by a frost after April 15 be ready to protect your primroses if you have a surprise late frost.

USDA Zone Info for Morton Grove

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Morton Grove

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