Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when to plant gazania by using the USDA zone info for Dubuque.

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.

Since gazania are barely cold tolerant you can plant them just a tiny bit earlier in the year than other frost tender plants.

The earliest that you can plant gazania in Dubuque 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 gazania and expect a good harvest is probably August. Any later than that and your gazania may not have a chance to really do well. You can get started a couple of weeks earlier by starting your gazania indoors.

Last Frost Date

The average date of last frost is April 15 in Dubuque. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Dubuque is just an average the actual date of last frost changes from year to year. Since half of the time in Dubuque it frosts late in the year after April 15 be ready to cover your gazania if you have a late frost.

USDA Zone Info for Dubuque

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Dubuque

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