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When to Plant Pampas Grass in Pasadena, CA

One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when it's a good idea to plant pampas grass is to look at the USDA zone info for Pasadena.


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.

It's probably a bad idea to plant pampas grass until after all chance of frost has passed because they do not do well in cold weather.

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 Pasadena 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 fully mature. If you are starting your pampas grass indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in Pasadena. You can expect an average low temperature of 30°F in the coldest months of winter.

Always keep in mind that USDA zone info for Pasadena may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Pasadena 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 Pasadena

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low30°F
Highest Expected Low35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Pasadena

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