One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant four-o-clock flower in Center can be determined by checking out the USDA zone info.

Planting Calendar for Four-o-clock flower

Frost tolerance for four-o-clock flower:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant four-o-clock flower until after the last frost because they do not do well in cold weather.

The earliest that you can plant four-o-clock flower in Center is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant four-o-clock flower and expect a good harvest is probably August. You probably don't want to wait any later than that or else your four-o-clock flower may not have a chance to fully mature. If you are starting your four-o-clock flower indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Center. In the coldest months of winter you can expect an average low temperature of 15°F.

Always keep in mind that USDA zone info for Center is not always accurate and the actual date of last frost changes from year to year. Half of the time in Center you get a frost after March 15 so be sure to be ready to protect your four-o-clock flower in the event of a late frost.

USDA Zone Info for Center

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Center

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