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

In Canton you can figure out when it's possible to plant calendula by referring to the USDA zone info.

Planting Calendar for Calendula

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

Since calendula do well in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant calendula in Canton 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 calendula and expect a good harvest is probably August. You probably don't want to wait any later than that or else your calendula may not have a chance to fully mature. You can get started a little bit earlier by starting your calendula indoors.

Last Frost Date

The average date of last frost is May 15 in Canton. You should expect an average low temperature of -30°F in the coldest months of winter.

Since the USDA zone info for Canton is just an average the actual date of last frost is different every year. Half of the time in Canton you get surprised by a frost after May 15 so make sure that you are prepared to cover your calendula in the event of a late frost.

USDA Zone Info for Canton

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Canton

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