When to Plant Pampas Grass in Imperial Beach, CA

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of making a decision about when it's the best time to plant pampas grass is to refer to the USDA zone info for Imperial Beach.


Planting Calendar for Pampas Grass

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

Since pampas grass require warm weather you have to wait until after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant pampas grass
Possibly ok, but a risky time to plant pampas grass
Probably not a good time to plant pampas grass

The earliest that you can plant pampas grass in Imperial Beach 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. If you wait any later than that and your pampas grass may not have a chance to grow to maturity. If you are starting your pampas grass indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Imperial Beach. It might get as low as 35°F during the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Imperial Beach and it can change quite a bit from year to year. Since half of the time in Imperial Beach you get a frost after January 31 be ready to protect your pampas grass if you have a late frost.

USDA Zone Info for Imperial Beach

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 Low35°F
Highest Expected Low40°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 Imperial Beach

You may be interested in your other planting guides for Imperial Beach.