Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Dayton it's possible to estimate when it's possible to plant tropical hibiscus.

Planting Calendar for Tropical Hibiscus

Frost tolerance for tropical hibiscus:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since tropical hibiscus do not do well in cold weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant tropical hibiscus in Dayton is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant tropical hibiscus and expect a good harvest is probably August. Any later than that and your tropical hibiscus may not have a chance to really do well. Starting your tropical hibiscus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Dayton. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Dayton is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Dayton you get surprised by a frost after May 15 be ready to cover your tropical hibiscus in the event of a surprise late frost.

USDA Zone Info for Dayton

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Dayton

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