One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when you can plant fountain grass by looking at the USDA zone info for Riverbank.

Planting Calendar for Fountain Grass

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

Fountain Grass tend to make it in very little cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant fountain grass 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 fountain grass and expect a good harvest is probably September. You probably don't want to wait any later than that or else your fountain grass may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your fountain grass indoors.

Last Frost Date

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

Since the USDA zone info for Riverbank is not always accurate the actual date of last frost changes from year to year. Since half of the time in Riverbank it frosts late in the year after February 15 be ready to cover your fountain grass in the event of 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.