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

You should be able to estimate when it's possible to plant dallas fern by checking out the USDA zone info for Harlingen.

Planting Calendar for Dallas Fern

Frost tolerance for dallas fern:	Not tolerant of frost.
When to plant:	After the last frost.

You really shouldn't plant dallas fern until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant dallas fern 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 dallas fern and expect a good harvest is probably September. Any later than that and your dallas fern may not have a chance to grow to maturity. Starting your dallas fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Harlingen is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Harlingen you get surprised by a frost after February 15 be ready to protect your dallas fern in the event of a 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.