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.

It's a good idea to figure out when you can plant primula by reviewing the USDA zone info for Rolling Meadows.

Planting Calendar for Primula

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

Since primula do well in cold you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant primula in Rolling Meadows 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 primula and expect a good harvest is probably September. You probably don't want to wait any later than that or else your primula may not have a chance to grow to maturity. You can get started a little bit earlier by starting your primula indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Rolling Meadows 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 Rolling Meadows you get a frost after April 15 be ready to protect your primula in the event of a late frost.

USDA Zone Info for Rolling Meadows

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 Rolling Meadows

You may be interested in your other planting guides for Rolling Meadows.