The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Devine should be used to figure out when you can plant four o' clock.

Planting Calendar for Four O' Clock

Frost tolerance for four o' clock:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since four o' clock require warm weather it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant four o' clock 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 four o' clock and expect a good harvest is probably September. You probably don't want to wait any later than that or else your four o' clock may not have a chance to really do well. You can get started a couple of weeks earlier by starting your four o' clock indoors.

Last Frost Date

The average date of last frost is February 15 in Devine. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Devine may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Devine it frosts late in the year after February 15 be ready to protect your four o' clock if you have a surprise 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.