One of the first steps you take when you are making a decision about 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.

A common way of determining when it's possible to plant zinnia is to refer to the USDA zone info for Devine.

Planting Calendar for Zinnia

Frost tolerance for zinnia:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant zinnia until after the last frost has passed because they require warm weather.

The earliest that you can plant zinnia in Devine 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 zinnia and expect a good harvest is probably September. If you wait any later than that and your zinnia may not have a chance to really do well. You can get started a few weeks earlier by starting your zinnia indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Devine is an average and the actual date of last frost will vary from year to year. Since half of the time in Devine you get surprised by a frost after February 15 be ready to protect your zinnia in the event of a late frost.

USDA Zone Info for Devine

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 Devine

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