Eryngium ravenelii Charleston Blues Portugal Good drainage in the winter

Good drainage in the winter is key to increased hardiness

grown from seed collected by plantsman Kenton Seth in the Texas's Franklin Mountains

The Juniper Creek plants form large colonies

Where Nierembergia 'Starry Eyes' isn't winter hardy

Eryngium ravenelii Charleston Blues Portugal Good drainage in the winter(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