Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Harlingen you can figure out when you can plant gerbera by looking at the USDA zone info.

Planting Calendar for Gerbera

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

You can plant gerbera a bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant gerbera 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 gerbera and expect a good harvest is probably September. You probably don't want to wait any later than that or else your gerbera may not have a chance to really do well. If you are starting your gerbera indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Harlingen. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that USDA zone info for Harlingen is just an average and the actual date of last frost is different every year. Since half of the time in Harlingen there is a last frost after February 15 be ready to protect your gerbera in the event of 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.