The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of figuring out when you can plant dallas fern is to consult the USDA zone info for Houston.

Planting Calendar for Dallas Fern

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

You really shouldn't plant dallas fern until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant dallas fern in Houston 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 fully mature. You can get started a few weeks earlier by starting your dallas fern indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Houston. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Houston 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 Houston it frosts late in the year after February 15 be ready to cover your dallas fern if you have a surprise late frost.

USDA Zone Info for Houston

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Houston

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