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.

It's possible to figure out when to plant hibiscus by referring to the USDA zone info for Pittsburg.

Planting Calendar for Hibiscus

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

Hibiscus require warm weather which tells us that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant hibiscus in Pittsburg 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 grow to maturity. You can get started a couple of weeks earlier by starting your hibiscus indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Pittsburg. It might get as low as -5°F during the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Pittsburg and it can change quite a bit from year to year. Half of the time in Pittsburg you get a frost after April 15 so be sure to be ready to cover your hibiscus in the event of a surprise late frost.

USDA Zone Info for Pittsburg

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 Pittsburg

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