One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant chicory in Caribou should be determined by looking at the USDA zone info.

Planting Calendar for Chicory

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

Chicory are moderately cold tolerant which tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant chicory in Caribou 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 chicory and expect a good harvest is probably August. Any later than that and your chicory may not have a chance to fully mature. Starting your chicory indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Caribou. In the coldest months of winter you should expect an average low temperature of -30°F.

Always keep in mind that USDA zone info for Caribou is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Caribou there is a last frost after May 15 be ready to cover your chicory in the event of a late frost.

USDA Zone Info for Caribou

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 Caribou

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