The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Palos Hills should be reviewed to determine when to plant hibiscus.

Planting Calendar for Hibiscus

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

Since hibiscus are not cold tolerant you have to wait until after the last frost before you can plant them.

The earliest that you can plant hibiscus in Palos Hills 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 grow to maturity. Starting your hibiscus indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Palos Hills. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Palos Hills is just an average and the actual date of last frost will vary from year to year. Since half of the time in Palos Hills it frosts late in the year after April 15 be ready to cover your hibiscus in the event of a surprise late frost.

USDA Zone Info for Palos Hills

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Palos Hills

You may be interested in your other planting guides for Palos Hills.