One of the best tools that you have as gardeners to help us determine 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.

You should be able to estimate when it's a good idea to plant coleus by using the USDA zone info for Jacksonville.

Planting Calendar for Coleus

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

Coleus are not cold tolerant which tells us that it's necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant coleus in Jacksonville 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 coleus and expect a good harvest is probably September. Any later than that and your coleus may not have a chance to fully mature. You can get started a little bit earlier by starting your coleus indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Jacksonville. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Jacksonville is not always accurate the actual date of last frost will vary from year to year. Half of the time in Jacksonville there is a last frost after February 15 so always be ready to cover your coleus in the event of a surprise late frost.

USDA Zone Info for Jacksonville

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 Jacksonville

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