One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's possible to plant african daisy by looking at the USDA zone info for Caribou.

Planting Calendar for African Daisy

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

Since african daisy are one of those plants that can tolerate a little bit of cold weather you can plant them just a bit earlier in the year than other frost tender plants.

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

Last Frost Date

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

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Caribou and it changes from year to year. Since half of the time in Caribou you get a frost after May 15 be ready to protect your african daisy if you have one of those late frosts.

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.