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botanical name:
Eryngium giganteum
Eryngium giganteum © Deeproot Plant Base
common name:  Sea Holly, Miss Wilmott's Ghost
synonyms:  Eryngium 'Miss Wilmott's Ghost', Eryngium giganteum 'Miss Wilmott's Ghost'
family:  Apiaceae
characteristics: annual/biennial
height: 1.20m
width: 0.70m
growth rate: medium
growth habit:
leaf colour: green
flower colour: silver
main season: Summer
aspect: full sun
conditions: dry soil, sandy soil, coastal
preferred soil pH: alkaline
minimum temp: -35°C
USDA zone: 4 to 9
Usually biennial, but often self-seeding, or sometimes short-lived perennial. Mid green basal leaves and striking metallic silver prickly flower heads.

Well drained, poor to moderately fertile soil in full sun. Avoid excessive winter wet. Drought tolerant.

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