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.

By reviewing the USDA zone info for Marathon it's a good idea to estimate when you can plant hardy hibiscus.

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 do well in cold which means that you can get them planted much earlier than plants that are more sensitive to the cold.

The earliest that you can plant hardy hibiscus in Marathon is January. However, you really should wait until February 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 November. If you wait any later than that and your hardy hibiscus may not have a chance to fully mature. Starting your hardy hibiscus indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Marathon it never frosts. It might get as low as 45°F during the coldest months of winter.

Keep in mind that USDA zone info for Marathon may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since it never frosts in Marathon you do not have to be ready to protect your hardy hibiscus in the event of a late frost.

USDA Zone Info for Marathon

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	45°F
Highest Expected Low	50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Marathon

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