Before planting it is a good idea to find your USDA Zone info to estimate 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.

By referring to the USDA zone info for Thief River Falls it's a good idea to determine when you can plant shasta daisys.

Planting Calendar for Shasta Daisys

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

Shasta Daisys do ok in a little bit of cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant shasta daisys in Thief River Falls 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 shasta daisys and expect a good harvest is probably August. If you wait any later than that and your shasta daisys may not have a chance to fully mature. If you are starting your shasta daisys indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Thief River Falls. In the coldest months of winter you should expect an average low temperature of -35°F.

Just be sure to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Thief River Falls and it changes from year to year. Since half of the time in Thief River Falls last frost occurs after May 15 be ready to cover your shasta daisys in the event of a late frost.

USDA Zone Info for Thief River Falls

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Thief River Falls

You may be interested in your other planting guides for Thief River Falls.