When to Plant Calibrachoa in Benton Harbor, MI

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant calibrachoa in Benton Harbor by reviewing the USDA zone info.


Planting Calendar for Calibrachoa

Frost tolerance for calibrachoa: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Calibrachoa are barely cold tolerant which tells us that you can get them planted just a bit earlier than other plants that might not handle the cold.

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

The earliest that you can plant calibrachoa in Benton Harbor is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant calibrachoa and expect a good harvest is probably August. If you wait any later than that and your calibrachoa may not have a chance to grow to maturity. If you are starting your calibrachoa 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 Benton Harbor. In the coldest months of winter you should expect an average low temperature of -5°F.

Remember that USDA zone info for Benton Harbor may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Benton Harbor you get surprised by a frost after April 15 so make sure that you are prepared to protect your calibrachoa in the event of one of those late frosts.

USDA Zone Info for Benton Harbor

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Benton Harbor

You may be interested in your other planting guides for Benton Harbor.