�y��vlog

Barnes wants us to grow another sculptural native perennial, the eryngium known as rattlesnake master, and asks: “Why don’t we all have this plant? I just planted 70.”

It’s a hoedown that changes with each step, as your viewpoint shifts, and it’s at this level that you see value in September of seemingly “dead” material — that is, the ghostly dark remnants of the yarrow blooms of June, the blackened seed heads of coneflowers or the declining remnants of the architectural eryngium known as rattlesnake master.

In one bed, you find the coneflower Green Jewel mixed in with the grass little bluestem and Eryngium yuccifolium.

You see them as dramatic plants in the flower borders of northern Europe, often varieties of a species named Eryngium giganteum.

Eryngium, or sea holly, is a stunning architectural plant — an electric blue, three-foot candelabra of globes with a collar of spiky bracts.