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.

A way of getting a good idea when it's a good idea to plant primula is to consult the USDA zone info for Moreno Valley.

Planting Calendar for Primula

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

Since primula are very cold tolerant you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant primula in Moreno Valley is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant primula and expect a good harvest is probably October. Any later than that and your primula may not have a chance to fully mature. Starting your primula indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Moreno Valley. You can expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Moreno Valley is just an average and the actual date of last frost is different every year. Since half of the time in Moreno Valley you get a frost after February 15 be ready to cover your primula in the event of a late frost.

USDA Zone Info for Moreno Valley

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Moreno Valley

You may be interested in your other planting guides for Moreno Valley.