The USDA Zone info is a great tool for gardeners to help us estimate your gardening 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 pampas grass in Atherton should be figured out by checking out 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 when the weather gets warmer.

Since pampas grass require warm weather it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant pampas grass in Atherton 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 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 fully mature. If you are starting your pampas grass indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Remember that USDA zone info for Atherton may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Atherton you get a frost after February 15 so make sure that you are prepared to cover your pampas grass if you have a late frost.

USDA Zone Info for Atherton

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 Atherton

You may be interested in your other planting guides for Atherton.