The USDA Zone info is a great tool for gardeners to help us estimate 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 a good idea to determine when it's the best time to plant dahlia by referring to the USDA zone info for Schaumburg.

Planting Calendar for Dahlia

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

Since dahlia do not do well in cold weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant dahlia in Schaumburg 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 dahlia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your dahlia may not have a chance to fully mature. Starting your dahlia indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Schaumburg. In the coldest months of winter you can expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Schaumburg is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Schaumburg last frost occurs after April 15 so be sure to be ready to protect your dahlia if you have a late frost.

USDA Zone Info for Schaumburg

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 Schaumburg

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