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 reviewing the USDA zone info for Granite City you should be able to determine when you can 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 can survive in a bit of cold which tells us that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant sedum in Granite City is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant sedum and expect a good harvest is probably September. Any later than that and your sedum may not have a chance to fully mature. Starting your sedum indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Granite City the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Granite City may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Granite City you get a frost after April 15 be ready to cover your sedum if you have a surprise late frost.

USDA Zone Info for Granite City

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Granite City

You may be interested in your other planting guides for Granite City.