One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Riverbank you can estimate when it's possible to plant creeping zinnia by looking at the USDA zone info.

Planting Calendar for Creeping Zinnia

Frost tolerance for creeping zinnia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant creeping zinnia a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

The earliest that you can plant creeping zinnia in Riverbank 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 creeping zinnia and expect a good harvest is probably September. Any later than that and your creeping zinnia may not have a chance to really do well. If you are starting your creeping zinnia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Riverbank. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Riverbank may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Riverbank there is a last frost after February 15 so just be sure to be ready to cover your creeping zinnia in the event of a late frost.

USDA Zone Info for Riverbank

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 Riverbank

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