One of the best tools that you have as gardeners to help us estimate 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.

The USDA zone info for Harlingen can be read to determine when you can plant lantana.

Planting Calendar for Lantana

Frost tolerance for lantana:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's probably not a good idea to plant lantana until after the last frost because they require warm weather.

The earliest that you can plant lantana in Harlingen 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 lantana and expect a good harvest is probably September. Any later than that and your lantana may not have a chance to really do well. You can get started a couple of weeks earlier by starting your lantana indoors.

Last Frost Date

In Harlingen the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Harlingen is an average the actual date of last frost changes from year to year. Since half of the time in Harlingen you get a frost after February 15 be ready to cover your lantana if you have one of those late frosts.

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.