The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when to plant summer savory is to look at the USDA zone info for Harlingen.

Planting Calendar for Summer Savory

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

Since summer savory do ok in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant summer savory in Harlingen 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 summer savory and expect a good harvest is probably September. Any later than that and your summer savory may not have a chance to fully mature. If you are starting your summer savory indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Harlingen. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Harlingen is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Harlingen it frosts late in the year after February 15 be ready to cover your summer savory if you have a surprise late frost.

USDA Zone Info for Harlingen

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 Harlingen

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