I have to dig (install a gas line) in a bed of columbine. I want to save the seeds to replant the bed. How soon after blooming can the seeds be harvested?
Certified GKH Gardening Expert
Can you dig up the plants and move them to a new location?
You could try this first, if not go ahead and collect the spent flowers and just scatter on the ground in your new location.
It really is that easy, but here is a couple of great links.
Just had to do this same process last summer, good luck!