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.

It's possible to estimate when it's a good idea to plant dahlia by looking at the USDA zone info for Morton Grove.

Planting Calendar for Dahlia

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

Dahlia do not do well in cold weather which tells us that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant dahlia in Morton Grove 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. Any later than that and your dahlia may not have a chance to fully mature. Starting your dahlia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Morton Grove. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Morton Grove 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 half of the time in Morton Grove it frosts late in the year after April 15 be ready to protect your dahlia in the event of a late frost.

USDA Zone Info for Morton Grove

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 Morton Grove

You may be interested in your other planting guides for Morton Grove.