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Eryngium Thistle

Eryngium ThistleThe Eryngium is a very ornamental and beautiful kind of Thistle. They are mostly quite hardy, and will grow in any garden soil, though they thrive best in a light, sandy one. The greenhouse and frame varieties should be grown in pots, so that they can be easily housed in winter.

They are readily increased by seed or division, and produce their flowers in July. Their height is about 1 to 4 feet.