One of the first steps you take when you are figuring out 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 stevia by looking at the USDA zone info for Humble.

Planting Calendar for Stevia

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

You should not plant stevia until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant stevia in Humble 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 stevia and expect a good harvest is probably September. Any later than that and your stevia may not have a chance to fully mature. Starting your stevia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Humble is an average the actual date of last frost will vary from year to year. Half of the time in Humble there is a last frost after February 15 so always be ready to protect your stevia in the event of a surprise late frost.

USDA Zone Info for Humble

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 Humble

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