One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when it's possible to plant garden cress by referring to the USDA zone info for Livermore.

Planting Calendar for Garden cress

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

Since garden cress require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant garden cress in Livermore is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant garden cress and expect a good harvest is probably September. If you wait any later than that and your garden cress may not have a chance to really do well. If you are starting your garden cress indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Livermore the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Livermore is an average the actual date of last frost changes from year to year. Since half of the time in Livermore you get surprised by a frost after February 15 be ready to protect your garden cress if you have a surprise late frost.

USDA Zone Info for Livermore

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 Livermore

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