Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when to plant hardy hibiscus by referring to the USDA zone info for Streamwood.

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 tend to make it in a bit of cold which tells us that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant hardy hibiscus in Streamwood 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 really do well. Starting your hardy 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 April 15 in Streamwood. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Streamwood is an average the actual date of last frost changes from year to year. Half of the time in Streamwood you get a frost after April 15 so make sure that you are prepared to cover your hardy hibiscus in the event of a late frost.

USDA Zone Info for Streamwood

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 Streamwood

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