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When to Plant Lemon grass in Rohnert Park, 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.

A way of determining when it's possible to plant lemon grass is to look at the USDA zone info for Rohnert Park.


Planting Calendar for Lemon grass

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

Lemon grass are barely cold tolerant which means that you can start planting them slightly earlier than other plants that might not handle the cold.

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

The earliest that you can plant lemon grass in Rohnert Park 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 lemon grass and expect a good harvest is probably September. If you wait any later than that and your lemon grass may not have a chance to fully mature. If you are starting your lemon grass indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Rohnert Park. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Rohnert Park may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Rohnert Park you get surprised by a frost after February 15 be ready to cover your lemon grass if you have one of those late frosts.

USDA Zone Info for Rohnert Park

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 Low25°F
Highest Expected Low30°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 Rohnert Park

You may be interested in your other planting guides for Rohnert Park.