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With ceramic blue agave and euphorbia towering over the succulent garden, turquoise equisetum rising above a bed of artichokes, and the soothing sounds of a ceramics-filled bubbling lily pond, the intimate setting is a welcome dose of beauty and calm during troubling times.

Her team zeroed in on the nutritional content of low-growing, spore-bearing horsetails, or Equisetum, which were widespread during the Jurassic period and still grow today.

Equisetum is rich in protein, they say, and far more nutritious than the ferns, cycads, and conifers common in the dinosaur era.

The houttuynia Chameleon, a leafy ground cover, is impossible to remove, much like equisetum, and both go wild in wet soils.

Harmer says there is an antidote, but the horses that ate the largest quantities of equisetum died.