Eryngium ravenelii Charleston Blues Sumatra Indonesia but this is a giant

but this is a giant version from Belarus plantsman Alexander Zukeivich

some unsafe plant sex had taken place

About the only maintenance we recommend is to cut back the old flower stalks after flowering

Royal Catchfly requires little more maintenance than cutting the spent flower stalks to the ground when they are no longer attractive

Eryngium ravenelii Charleston Blues Sumatra Indonesia but this is a giant(aka: Eryngium aquaticum var. ravenelii) Eryngium ravenelii is one of those wonderful southeast natives that you wonder why everyone doesn't grow. Shared by plant prodigy Dr. Patrick McMillan, Eryngium ravenelii forms a small basal rosette of 1' long linear leaves, which, starting for us in mid August, is topped with 30" tall flowering stalks, each ending in branched antennae like clusters of 6 10 blue fuzzy, thumb sized ball like flower heads a