One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

By looking at the USDA zone info for Republic you should be able to estimate 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.

Four O' Clock require warm weather which means that it is necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant four o' clock in Republic 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 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 may not have a chance to grow to maturity. If you are starting your four o' clock indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Republic. You can expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Republic is not always accurate and the actual date of last frost is different every year. Since half of the time in Republic there is a last frost after April 15 be ready to protect your four o' clock in the event of a surprise late frost.

USDA Zone Info for Republic

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Republic

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