Before planting it is a good idea to find your USDA Zone info to estimate 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 Layton you can estimate when it's possible to plant primroses by looking at 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.

Primroses do well in cold weather which tells us that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant primroses in Layton 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 really do well. You can get started a few weeks earlier by starting your primroses indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Layton. In the coldest months of winter you can expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Layton is an average and the actual date of last frost is different every year. Half of the time in Layton you get a frost after April 15 so be sure to be ready to cover your primroses in the event of one of those late frosts.

USDA Zone Info for Layton

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 Layton

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