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.

One way of estimating when it's a good idea to plant hardy hibiscus is to examine the USDA zone info for Butler.

Planting Calendar for Hardy Hibiscus

Frost tolerance for hardy hibiscus:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Hardy Hibiscus are one of those plants that can tolerate quite a bit of cold weather which means that you can start planting them much earlier than other frost tender plants.

The earliest that you can plant hardy hibiscus in Butler is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant hardy hibiscus and expect a good harvest is probably September. You probably don't want to wait any later than that or else your hardy hibiscus may not have a chance to grow to maturity. You can get started a little bit earlier by starting your hardy hibiscus indoors.

Last Frost Date

On average the last frost is on April 15 in Butler. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Butler may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Butler you get surprised by a frost after April 15 so make sure that you are ready to cover your hardy hibiscus in the event of a late frost.

USDA Zone Info for Butler

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 Butler

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