When can I plant Echinacea in Zone 4a

One of the first steps we take when we are estimating our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

You can estimate when it's possible to plant echinacea in Zone 4a by using the USDA zone info.


Planting Calendar for Echinacea

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

Echinacea can survive in very little cold which means that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant echinacea
Possibly ok, but a risky time to plant echinacea
Probably not a good time to plant echinacea

The earliest that you can plant echinacea in Zone 4a 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 echinacea and expect a good harvest is probably August. If you wait 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

In Zone 4a the average date of last frost happens on May 15. We should expect an average low temperature of -30°F in the coldest months of winter.

Since the USDA zone info for Zone 4a may not be accurate from year to year our actual date of last frost can change quite a bit from year to year. Half of the time in Zone 4a we get surprised by a frost after May 15 so make sure that you are ready to protect your echinacea if we have a surprise late frost.

USDA Zone Info for Zone 4a

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zone 4a

You may be interested in our other planting guides for Zone 4a.