More info about our plant sizes.
An exciting new development in Eryngiums: blue, thistle-like summer flowers are surrounded by golden-chartreuse foliage, making the perfect backdrop for these long-lasting blooms. Happy with little water once established, its strength and color make it a good choice for the rock garden or a mixed container. It actually performs better in poor, infertile soil. Allow the soil to dry between thorough waterings.18–24" tall and clumping.
Minimum temperature: -20° F