One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to figure out when you can plant hamelia by reviewing the USDA zone info for Houston.

Planting Calendar for Hamelia

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

Since hamelia require warm weather you have to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant hamelia 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 hamelia and expect a good harvest is probably September. Any later than that and your hamelia may not have a chance to really do well. If you are starting your hamelia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Houston. In the coldest months of winter you can expect an average low temperature of 20°F.

Just be sure to remember that USDA zone info for Houston may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Houston you get surprised by a frost after February 15 so make sure that you are ready to cover your hamelia if you have one of those late frosts.

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.