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.

In Texas City you can figure out when it's the best time to plant dahlia by using the USDA zone info.

Planting Calendar for Dahlia

Frost tolerance for dahlia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since dahlia are not cold tolerant you need to wait until after the last frost before you can plant them.

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

Last Frost Date

The average date of last frost is February 15 in Texas City. You should expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Texas City is an average and the actual date of last frost will vary from year to year. Half of the time in Texas City last frost occurs after February 15 so always be ready to cover your dahlia if you have a late frost.

USDA Zone Info for Texas City

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 Texas City

You may be interested in your other planting guides for Texas City.