The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's possible to plant arctotis in Grand Forks by looking at the USDA zone info.

Planting Calendar for Arctotis

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

Arctotis are one of those plants that can tolerate a little bit of cold weather which tells us that you can start planting them earlier than other plants that might not handle the cold.

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

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Grand Forks. You should expect an average low temperature of -30°F in the coldest months of winter.

Always 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 Grand Forks and it will vary from year to year. Since half of the time in Grand Forks you get a frost after May 15 be ready to cover your arctotis in the event of a surprise late frost.

USDA Zone Info for Grand Forks

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 Grand Forks

You may be interested in your other planting guides for Grand Forks.