The USDA Zone info is a great tool for gardeners to help us figure out 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.

A common way of making a decision about when it's possible to plant california poppy is to examine the USDA zone info for Riverbank.

Planting Calendar for California Poppy

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

California Poppy do well in mild cold which means that you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant california poppy 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 california poppy and expect a good harvest is probably September. If you wait any later than that and your california poppy may not have a chance to grow to maturity. You can get started a little bit earlier by starting your california poppy indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Riverbank may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Riverbank you get a frost after February 15 be ready to protect your california poppy if you have one of those late frosts.

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.