The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 Swarthmore you should be able to estimate when it's a good idea 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.

Since sedum do well in cold you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant sedum in Swarthmore 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. If you wait any later than that and your sedum may not have a chance to fully mature. You can get started a few weeks earlier by starting your sedum indoors.

Last Frost Date

On average the last frost is on April 15 in Swarthmore. It might get as low as 0°F during the coldest months of winter.

Keep in mind that USDA zone info for Swarthmore may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Swarthmore last frost occurs after April 15 so make sure that you are prepared to cover your sedum if you have one of those late frosts.

USDA Zone Info for Swarthmore

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Swarthmore

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