When to Plant Geranium in Mishawaka, IN

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

You will be able to estimate when it's a good idea to plant geranium by looking at the USDA zone info for Mishawaka.


Planting Calendar for Geranium

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

It's a bad idea to plant geranium until after the last frost because they do not do well in cold weather.

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 Mishawaka 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. You probably don't want to wait any later than that or else your geranium may not have a chance to fully mature. If you are starting your geranium indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Mishawaka. In the coldest months of winter you should expect an average low temperature of -15°F.

Remember that USDA zone info for Mishawaka is not always accurate and the actual date of last frost is different every year. Half of the time in Mishawaka it frosts late in the year after April 15 so just be sure to be ready to cover your geranium if you have one of those late frosts.

USDA Zone Info for Mishawaka

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 Mishawaka

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