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botanical name:
Eryngium giganteum 'Silver Ghost'
Eryngium giganteum 'Silver Ghost' © Deeproot Plant Base
common name:  Sea Holly
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
Form with narrow, very silvery-white, prickly flower bracts. Mid green basal leaves.

Well drained, poor to moderately fertile soil in full sun. Avoid excessive winter wet. Drought tolerant.
Usually treated as a biennial.

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