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

A common way of determining when to plant calendula is to look at the USDA zone info for Frankenmuth.

Planting Calendar for Calendula

Frost tolerance for calendula:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Calendula do ok in mild cold which means that you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant calendula in Frankenmuth is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant calendula and expect a good harvest is probably September. You probably don't want to wait any later than that or else your calendula may not have a chance to grow to maturity. Starting your calendula 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 Frankenmuth. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Frankenmuth is an average and the actual date of last frost is different every year. Half of the time in Frankenmuth last frost occurs after April 15 so always be ready to protect your calendula in the event of one of those late frosts.

USDA Zone Info for Frankenmuth

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 Frankenmuth

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