The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when to plant sedum is to refer to the USDA zone info for Douglas.

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 plant them a quite a bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant sedum in Douglas 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. You probably don't want to wait any later than that or else your sedum may not have a chance to really do well. Starting your sedum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Douglas. You should expect an average low temperature of -25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Douglas is an average and the actual date of last frost changes from year to year. Half of the time in Douglas last frost occurs after May 15 so always be ready to cover your sedum in the event of a surprise late frost.

USDA Zone Info for Douglas

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Douglas

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