One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Thief River Falls it's a good idea to estimate when to plant sedum.

Planting Calendar for Sedum

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

Sedum are very cold tolerant which tells us that you can get them planted much earlier than other plants that might not handle the cold.

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

Last Frost Date

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

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Thief River Falls and it is different every year. Half of the time in Thief River Falls there is a last frost after May 15 so be sure to be ready to protect your sedum 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.