The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant summer savory in Superior can be figured out by looking at the USDA zone info.

Planting Calendar for Summer Savory

Frost tolerance for summer savory:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Summer Savory are barely cold tolerant which means that you can get them planted just a bit earlier than other plants that might not handle the cold.

The earliest that you can plant summer savory in Superior is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is May 15 in Superior. It might get as low as -25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Superior is just an average and the actual date of last frost is different every year. Half of the time in Superior there is a last frost after May 15 so just be sure to be ready to cover your summer savory if you have a surprise late frost.

USDA Zone Info for Superior

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 Superior

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