Collecting Echium wildpretii seeds?
My Echium wildpretii is in bloom and I'd hate to just let the seeds go to waste. Can someone give me good instructions on collecting the seeds?
I tried last year with an E. wildpretii x pininana cross and didn't get much.
Here's a photo. The plant is "only" 6 feet tall (they are often a few feet taller). Blooms in its second year (or later) and then dies. Hardy to 25 F or so for those who are curious. My seeds were from J.L. Hudson; Annie's Annuals also sells plants.
A closeup view shows the roughly 1/2 inch flowers that open increasingly farther out from the central stalk (dead ones are dark purple). A seed forms at the base of each flower. The inflorescence contains many thousands such flowers (and thus forms many seeds).