When can I plant Lettuce in Zone 9b

One of the first steps we take when we are determining our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The USDA zone info for Zone 9b can be reffered to in order to estimate when to plant lettuce.


Planting Calendar for Lettuce

Frost tolerance for lettuce: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Lettuce are one of those plants that can tolerate a little bit of cold weather which means that you can get them planted earlier than other frost tender plants.

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

The earliest that you can plant lettuce in Zone 9b is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant lettuce and expect a good harvest is probably October. You probably don't want to wait any later than that or else your lettuce may not have a chance to really do well. You can get started a little bit earlier by starting your lettuce indoors.

Last Frost Date

On average the last frost is on February 15 in Zone 9b. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Zone 9b is not always accurate and our actual date of last frost is different every year. Since half of the time in Zone 9b last frost occurs after February 15 be ready to cover your lettuce if we have one of those late frosts.

USDA Zone Info for Zone 9b

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 Zone 9b

You may be interested in our other planting guides for Zone 9b.