Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when you can plant coleus is to consult the USDA zone info for Barnwell.

Planting Calendar for Coleus

Frost tolerance for coleus:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You can not plant coleus until after the last frost because they are not cold tolerant.

The earliest that you can plant coleus in Barnwell 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 coleus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your coleus may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your coleus indoors.

Last Frost Date

The average date of last frost is March 15 in Barnwell. You should expect an average low temperature of 10°F in the coldest months of winter.

Keep in mind that USDA zone info for Barnwell may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Barnwell you get surprised by a frost after March 15 so just be sure to be ready to protect your coleus in the event of one of those late frosts.

USDA Zone Info for Barnwell

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 Barnwell

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