Before planting it is a good idea to find your USDA Zone info to figure out 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.

In Pleasant Prairie you can figure out when it's possible to plant primula by referring to the USDA zone info.

Planting Calendar for Primula

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

Primula do well in cold which means that you can start planting them much earlier than other frost tender plants.

The earliest that you can plant primula in Pleasant Prairie 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. Any later than that and your primula may not have a chance to really do well. You can get started a few weeks earlier by starting your primula indoors.

Last Frost Date

The average date of last frost is April 15 in Pleasant Prairie. 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 Pleasant Prairie is just an average and the actual date of last frost will vary from year to year. Half of the time in Pleasant Prairie it frosts late in the year after April 15 so make sure that you are ready to cover your primula if you have one of those late frosts.

USDA Zone Info for Pleasant Prairie

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 Pleasant Prairie

You may be interested in your other planting guides for Pleasant Prairie.