One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant gazania in Caribou should be estimated by checking out the USDA zone info.

Planting Calendar for Gazania

Frost tolerance for gazania:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant gazania just a tiny bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant gazania in Caribou is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant gazania and expect a good harvest is probably August. If you wait any later than that and your gazania may not have a chance to grow to maturity. If you are starting your gazania indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Caribou the average date of last frost happens on May 15. You should expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember 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 will vary from year to year. Half of the time in Caribou it frosts late in the year after May 15 so make sure that you are prepared to protect your gazania if you have 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.