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 way of determining when to plant sedum is to check out the USDA zone info for Harvard.

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 much earlier in the year than more sensitive plants.

The earliest that you can plant sedum in Harvard 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 grow to maturity. If you are starting your sedum indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Harvard. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Harvard is an average and the actual date of last frost will vary from year to year. Half of the time in Harvard it frosts late in the year after April 15 so always be ready to protect your sedum in the event of one of those late frosts.

USDA Zone Info for Harvard

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Harvard

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