I love all cone flowers and am fortunate to have many established plants of various colors. Each fall I cut all the seed heads and crumble them up all around other parts of the garden. I know cross pollination effects other similar plants and distorts colors, will that happen to cone flowers too ?

Hey BFVISION,
I had white coneflowers next to my purple ones..

And the following year, they started turning,
a pale pink, the following year they were totally
pink..

I do know there is a "dominance" thing with
plants, the stronger will over power the weaker...

Same for phlox, the tall variety..
I had a pale purple and a pale pink..
They lived here, for a long time, with the previous owners even..
Then one day, in an other area, a vibrant pink
clump sprouted and wowwwwwwwwwww were they dominate.

Now the two other clumps that I had that were the other two colors, are now changing...
The purple one is darkening... and the light pink one is developing a dark pink/magenta ring on
the inside..

So yes, they can change..

What colors do you have????

I love all the cones. I have white, purple and lots of yellow/orange. It should be an interesting season next year...