Do Coneflowers Spread or multiply?

Coneflowers, also known as Echinacea are herbaceous perennial flowers native to a large portion of North America.  They are a member of the aster family, and there are 10 species recognized.  Additionally, numerous hybrids available from seed companies.  There are a large variety of size, and colors available at nurseries and garden centers.  It is one of the most common and popular perennial plants for flower beds due to its long bloom duration, beauty, toughness, and versatility.

Physical Description

Coneflowers produce multiple daisy-like flowers on tall stems that reach 4’ in height.  The plant itself at full size will reach 2’-3’ in diameter / spacing.  The leaves are lance-shaped, serrated, and large being 6” long by several inches wide in most varieties.  Most Coneflower species have taproots and do not transplant easily.  However, common Purple Coneflower, Echinacea purpurea has fibrous roots and can be divided easily. Purple Cone Flower

Common uses of Coneflowers are in manicured flower beds, border gardens, and backyard meadows and micro-prairies.  These plants are generally well behaved, and if placed in the correct location look absolutely beautiful.  Coneflowers are loved by pollinators and are heavily visited by bees, butterflys and birds (eating seeds), making them an important part of the ecosystem.

How do Coneflowers Spread?

Self-seeding

Coneflowers spread by self-seeding.  Each flower has a central cone and petals.  The cone produces numerous seeds, while each petal has a seed attached to the base, where it connects to the cone (this is called a ray flower).  Each bloom produces many seeds, some of which inevitably fall to the ground.  Goldfinches in particular will land on dried seed heads and pick out seeds.  During this process, seeds fall to the ground, and if not eaten by another bird or mouse, may germinate in the following Spring.

Volunteer seedlings under purple coneflower. This is a mix of Echinacea purpurea and partridge pea seedlings.

Coneflowers will multiply under good conditions, namely disturbed soil and plentiful seed that falls from the spent flower.

coneflowers spread from seed
Two Coneflower Plants that grew from seed dropped by the nearby, larger plant.

Root Mass

This is only applicable for common Purple Coneflower, Echinacea purpurea and its hybrids, as they have a fibrous root system.  The central root mass of a coneflower will grow in size each year, eventually growing up to 2’ diameter.  Once the coneflower root mass approaches this size it should be divided to keep the plant attractive and vigorous.  The problem is the central part of the root mass will die, and you will have a void in the center of the plant the following growing season.

See our guide on dividing Perennials for detailed process on dividing perennials HERE

Other notes on Coneflowers spreading

I’ve not seen Coneflowers produce more then 20-30 unwanted seedlings per plant.  And this also only occurs in disturbed/open soil, or mulch.  The seedlings only take about 5 minutes to remove, as the roots are only 1” long or so (25 mm).  So, I don’t see the spreading as a concern.  Additionally, the young tender seedlings can easily be potted up to grow further, and eventually be located somewhere more desirable.  But if you don’t want any volunteer Coneflower Seedlings, then skip to the next section.  There is a very simple trick to stop coneflowers from spreading via self-seeding.

Coneflower Seedlings
The seedlings in these pots germinated under one of my Purple Coneflowers by themselves. Aka – they were volunteers!

In my experience, Coneflowers only spread when soil or mulch has been disturbed over the winter, as this effectively makes it easy for the seed to be ‘planted’, or it just has enough contact with the soil.  I’ve found that one of my coneflowers in my front flower bed self-seeded heavily, while the other two coneflowers had almost no germination.  My conclusion why this happened is that my children play ‘digger trucks’ under the coneflower that self-seeded a lot, but they don’t play under the others.  So, voila – they inadvertently planted the seeds!

Deadhead Coneflowers to prevent spreading

There is a very easy way to stop Coneflowers from spreading.  Just deadhead the coneflowers once the blooms are fading.  Take a scissors, or pruning shears, and starting at the spent bloom, follow the stem to where it meets two leaves.  Cut the stem just above these two leaves.  Doing this will prevent seeds from forming, and therefore prevent new plants germinating next Spring.Purple Coneflower, Echinacea Purpurea

MORE ON CONEFLOWERS:

Save Echinacea Seeds – An Illustrated Guide

Echinacea Purpurea – How To Grow Purple Coneflower

How to Grow and Care for Mexican Hat Coneflower

Echinacea Pallida – How to Grow Pale Purple Coneflower

Stay Updated!

Sign up for our newsletter.  We will notify you of reminders and tips for garden maintenance, as well as any large updates to our site!

coneflowers how do they spread

Please take a moment & SUBSCRIBE TO OUR YOUTUBE CHANNEL HERE:

GROWIT BUILDIT YOUTUBE CHANNEL

BE SURE TO CHECK OUT THESE OTHER ARTICLES WE THINK YOU WILL ENJOY!!

Reasons to NOT make raised bed gardens

Our EASY method to remove grass by hand

Native Plant Profiles

Invasive Plants

Please follow and like us:
error

Add a Comment

Your email address will not be published. Required fields are marked *

Pinterest
Pinterest
Instagram
YouTube
YouTube
Facebook
Facebook
Follow by Email