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

In Zone 10b you can estimate when to plant pampas grass by using the USDA zone info.

Planting Calendar for Pampas Grass

Frost tolerance for pampas grass:	Not tolerant of frost.
When to plant:	After the last frost.

It's a bad idea to plant pampas grass until after the last frost has passed because they require warm weather.

The earliest that you can plant pampas grass in Zone 10b 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 pampas grass and expect a good harvest is probably September. You probably don't want to wait any later than that or else your pampas grass may not have a chance to grow to maturity. You can get started a little bit earlier by starting your pampas grass indoors.

Last Frost Date

In Zone 10b the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 35°F.

Always keep in mind that USDA zone info for Zone 10b is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Zone 10b it frosts late in the year after January 31 be ready to cover your pampas grass in the event of a late frost.

USDA Zone Info for Zone 10b

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Zone 10b

You may be interested in your other planting guides for Zone 10b.