When to Plant Geranium in Bloomingdale, IL

One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's the best time to plant geranium in Bloomingdale by referring to the USDA zone info.


Planting Calendar for Geranium

Frost tolerance for geranium: Not tolerant of frost.
When to plant: After the last frost has passed.

Since geranium are not cold tolerant you must wait until after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant geranium
Possibly ok, but a risky time to plant geranium
Probably not a good time to plant geranium

The earliest that you can plant geranium in Bloomingdale 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 geranium and expect a good harvest is probably August. Any later than that and your geranium may not have a chance to fully mature. Starting your geranium indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Bloomingdale is not always accurate and the actual date of last frost is different every year. Since half of the time in Bloomingdale last frost occurs after April 15 be ready to cover your geranium if you have one of those late frosts.

USDA Zone Info for Bloomingdale

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 Bloomingdale

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