The USDA Zone info is a great tool for gardeners to help us determine 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 looking at the USDA zone info for Riverbank it's a good idea to figure out when to plant schizanthus.

Planting Calendar for Schizanthus

Frost tolerance for schizanthus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Schizanthus require warm weather which means that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant schizanthus in Riverbank 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 schizanthus and expect a good harvest is probably September. Any later than that and your schizanthus may not have a chance to really do well. You can get started a couple of weeks earlier by starting your schizanthus indoors.

Last Frost Date

The average date of last frost is 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 is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Riverbank you get surprised by a frost after February 15 so always be ready to protect your schizanthus if you have a surprise 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.