Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Moreno Valley you can determine when to plant zinnia by using the USDA zone info.

Planting Calendar for Zinnia

Frost tolerance for zinnia:	Not tolerant of frost.
When to plant:	After the last frost.

Since zinnia do not do well in cold weather you have to wait until after all chance of frost has passed before you can plant them.

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

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

Last Frost Date

On average all chance of frost has passed is on February 15 in Moreno Valley. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Moreno Valley is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Moreno Valley last frost occurs after February 15 be ready to cover your zinnia in the event of one of those late frosts.

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.