Eryngoes, also called sea hollies, are perennial plants, occasionally annuals, with distinctive, bristly flower heads.They ...

Sea holly (Eryngium planum) is a tough plant, surviving in extreme cold and poor soils. It has thick, spiky leaves and steel blue or white flowers that resemble thistle plants.

Plant globe thistle and sea holly in the hottest, driest part of the garden. They are excellent choices for butterflies and other pollinators, xeriscape (low-water use) gardens, naturalized areas ...

Eryngium, commonly called sea holly or Alpine thistle, is a plant that grows well in Redlands. It is native to Europe, including the Mediterranean, Siberia and the Balkans, and its name comes from ...

The idea that plants might be controlling their internal temperatures took off in the late 1980s, and is known as “limited homeothermy.” However, this is a rare skill among plants, Still says.