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.

By using the USDA zone info for Zone 6a you will be able to figure out when to plant hibiscus.

Planting Calendar for Hibiscus

Frost tolerance for hibiscus:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably not a good idea to plant hibiscus until after the last frost because they are not cold tolerant.

The earliest that you can plant hibiscus in Zone 6a 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 hibiscus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your hibiscus may not have a chance to fully mature. You can get started a few weeks earlier by starting your hibiscus indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Zone 6a. In the coldest months of winter you should expect an average low temperature of -10°F.

It's important to remember that USDA zone info for Zone 6a is an average and the actual date of last frost will vary from year to year. Since half of the time in Zone 6a last frost occurs after April 15 be ready to protect your hibiscus in the event of a late frost.

USDA Zone Info for Zone 6a

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Zone 6a

You may be interested in your other planting guides for Zone 6a.