The USDA Zone info is a great tool for gardeners to help us determine 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.

By referring to the USDA zone info for Bay City you should be able to estimate when you can plant calibrachoa.

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 tend to make it in some cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant calibrachoa in Bay City 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 really do well. You can get started a little bit earlier by starting your calibrachoa indoors.

Last Frost Date

The average date of last frost is April 15 in Bay City. You can expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Bay City is just an average and the actual date of last frost is different every year. Half of the time in Bay City there is a last frost after April 15 so be sure to be ready to protect your calibrachoa if you have one of those late frosts.

USDA Zone Info for Bay City

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 Bay City

You may be interested in your other planting guides for Bay City.