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When to Plant Purple Coneflower in Avon, CO

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Avon it's possible to determine when you can plant purple coneflower.


Planting Calendar for Purple Coneflower

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

Purple Coneflower can survive in very little cold which tells us that you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant purple coneflower in Avon 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 purple coneflower and expect a good harvest is probably August. If you wait any later than that and your purple coneflower may not have a chance to grow to maturity. Starting your purple coneflower indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Avon the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

It's important to remember that USDA zone info for Avon may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Avon you get surprised by a frost after May 15 so just be sure to be ready to protect your purple coneflower in the event of one of those late frosts.

USDA Zone Info for Avon

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 Avon

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