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

By reviewing the USDA zone info for Kingfisher it's possible to determine when to plant primula.

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 other plants that might not handle the cold.

The earliest that you can plant primula in Kingfisher 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. If you wait any later than that and your primula may not have a chance to fully mature. You can get started a few weeks earlier by starting your primula indoors.

Last Frost Date

In Kingfisher the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

Keep in mind that USDA zone info for Kingfisher is just an average and the actual date of last frost is different every year. Since half of the time in Kingfisher last frost occurs after April 15 be ready to cover your primula in the event of a surprise late frost.

USDA Zone Info for Kingfisher

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Kingfisher

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