The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Lathrop you can figure out when you can plant lettuce by referring to the USDA zone info.

Planting Calendar for Lettuce

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

You can plant lettuce a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant lettuce in Lathrop 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 fully mature. If you are starting your lettuce 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 when the weather gets warmer is on February 15 in Lathrop. It might get as low as 25°F during the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Lathrop and it changes from year to year. Since half of the time in Lathrop it frosts late in the year after February 15 be ready to protect your lettuce if you have a surprise late frost.

USDA Zone Info for Lathrop

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 Lathrop

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