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.

A common way of estimating when it's a good idea to plant artichokes is to examine the USDA zone info for Tomball.

Planting Calendar for Artichokes

Frost tolerance for artichokes:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Artichokes can survive in moderate cold which tells us that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant artichokes in Tomball is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant artichokes and expect a good harvest is probably October. If you wait any later than that and your artichokes may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your artichokes indoors.

Last Frost Date

In Tomball the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Remember that USDA zone info for Tomball is not always accurate and the actual date of last frost changes from year to year. Half of the time in Tomball last frost occurs after February 15 so make sure that you are ready to protect your artichokes if you have 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.