The USDA Zone info is a great tool for gardeners to help us figure out 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.

By looking at the USDA zone info for Dover 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.

You can plant sedum quite a bit earlier in the year because they are very cold tolerant.

The earliest that you can plant sedum in Dover 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 really do well. Starting your sedum indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Dover. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Dover may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Dover it frosts late in the year after April 15 be ready to protect your sedum in the event of a late frost.

USDA Zone Info for Dover

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Dover

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