The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when it's the best time to plant primroses is to use the USDA zone info for Bellbrook.

Planting Calendar for Primroses

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

Primroses do well in cold which tells us that you can start planting them much earlier than other frost tender plants.

The earliest that you can plant primroses in Bellbrook 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. 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 Bellbrook. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Bellbrook 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 Bellbrook you get a frost after April 15 be ready to cover your primroses in the event of one of those late frosts.

USDA Zone Info for Bellbrook

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 Bellbrook

You may be interested in your other planting guides for Bellbrook.