One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when to plant hibiscus is to look at the USDA zone info for Hanover.

Planting Calendar for Hibiscus

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

Hibiscus do not do well in cold weather which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant hibiscus in Hanover 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. Any later than that and your hibiscus may not have a chance to really do well. Starting your hibiscus indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Hanover. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Hanover is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Hanover you get surprised by a frost after April 15 so be sure to be ready to protect your hibiscus if you have one of those late frosts.

USDA Zone Info for Hanover

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 Hanover

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