Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant pennisetum in San Bernardino can be figured out by looking at the USDA zone info.

Planting Calendar for Pennisetum

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

Since pennisetum are barely cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant pennisetum in San Bernardino 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 pennisetum and expect a good harvest is probably September. If you wait any later than that and your pennisetum may not have a chance to grow to maturity. Starting your pennisetum indoors is a great way to get them started a little bit earlier.

Last Frost Date

In San Bernardino the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for San Bernardino may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in San Bernardino there is a last frost after February 15 so just be sure to be ready to protect your pennisetum in the event of one of those late frosts.

USDA Zone Info for San Bernardino

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 San Bernardino

You may be interested in your other planting guides for San Bernardino.