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.

You can determine when it's the best time to plant echinacea in Oconomowoc by checking out the USDA zone info.

Planting Calendar for Echinacea

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

Echinacea can survive in some cold which means that you can plant them slightly earlier in the year than other plants that might not handle the cold.

The earliest that you can plant echinacea in Oconomowoc is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant echinacea and expect a good harvest is probably August. Any later than that and your echinacea may not have a chance to grow to maturity. You can get started a little bit earlier by starting your echinacea indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Oconomowoc. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Oconomowoc is not always accurate the actual date of last frost changes from year to year. Half of the time in Oconomowoc there is a last frost after April 15 so make sure that you are prepared to protect your echinacea in the event of a late frost.

USDA Zone Info for Oconomowoc

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Oconomowoc

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