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

You can determine when it's the best time to plant tropical hibiscus in Cynthiana by reviewing the USDA zone info.

Planting Calendar for Tropical Hibiscus

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

Tropical Hibiscus require warm weather which means that it is 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 tropical hibiscus in Cynthiana 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 tropical hibiscus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your tropical hibiscus may not have a chance to really do well. You can get started a couple of weeks earlier by starting your tropical hibiscus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Cynthiana. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Cynthiana may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Cynthiana it frosts late in the year after April 15 so always be ready to cover your tropical hibiscus if you have a late frost.

USDA Zone Info for Cynthiana

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 Cynthiana

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