One of the best tools that you have as gardeners to help us determine 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.

It's a good idea to estimate when it's a good idea to plant anchusa by using the USDA zone info for Moorhead.

Planting Calendar for Anchusa

Frost tolerance for anchusa:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant anchusa quite a bit earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant anchusa in Moorhead 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 anchusa and expect a good harvest is probably August. If you wait any later than that and your anchusa may not have a chance to really do well. Starting your anchusa indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Moorhead. In the coldest months of winter you should expect an average low temperature of -30°F.

It's important to remember that USDA zone info for Moorhead is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Moorhead you get surprised by a frost after May 15 so make sure that you are ready to cover your anchusa in the event of a surprise late frost.

USDA Zone Info for Moorhead

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 Moorhead

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