The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Riverside it's possible to figure out when to plant maltese cross.

Planting Calendar for Maltese Cross

Frost tolerance for maltese cross:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant maltese cross a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant maltese cross in Riverside 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 maltese cross and expect a good harvest is probably October. If you wait any later than that and your maltese cross may not have a chance to really do well. You can get started a couple of weeks earlier by starting your maltese cross indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Riverside. You should expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Riverside is an average and the actual date of last frost changes from year to year. Since half of the time in Riverside last frost occurs after February 15 be ready to protect your maltese cross in the event of one of those late frosts.

USDA Zone Info for Riverside

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 Riverside

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