Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Laurel it's possible to figure out when to plant four o' clock.

Planting Calendar for Four O' Clock

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

Since four o' clock require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant four o' clock in Laurel 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. Any later than that and your four o' clock may not have a chance to fully mature. Starting your four o' clock indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Laurel. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Laurel may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Laurel last frost occurs after March 15 be ready to cover your four o' clock in the event of one of those late frosts.

USDA Zone Info for Laurel

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Laurel

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