Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Tomball you can determine when to plant cilantro by checking out the USDA zone info.

Planting Calendar for Cilantro

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

Cilantro tend to make it in a tiny bit of cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant cilantro in Tomball 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 cilantro and expect a good harvest is probably September. Any later than that and your cilantro may not have a chance to fully mature. If you are starting your cilantro indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Tomball. In the coldest months of winter you should expect an average low temperature of 20°F.

Always keep in mind that USDA zone info for Tomball is just an average and the actual date of last frost changes from year to year. Half of the time in Tomball you get a frost after February 15 so make sure that you are ready to protect your cilantro in the event of a surprise late frost.

USDA Zone Info for Tomball

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 Tomball

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