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Eryngium planum (Blue Eryngo, Blue Sea Holly, Flat Sea Holly, Sea Holly, Sea Star Thistle, Star Thistle) | North Carolina Extension Gardener Plant Toolbox
High Country Gardens - A gorgeous patio planting featuring Sea Holly ( Eryngium planum Blue Glitter) https://www.highcountrygardens.com/perennial-plants/unique-plants/eryngium-planum-blue-glitter | Facebook
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