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botanical name:
Eryngium bourgatii
Eryngium bourgatii © Deeproot Plant Base
common name:  Sea Holly
family:  Apiaceae
characteristics: perennial
height: 0.45m
width: 0.30m
growth rate: medium
growth habit: clump
leaf colour: dark green
flower colour: blue-grey
stem/bark: blue
main season: Summer
aspect: full sun
conditions: dry soil, moist soil, sandy soil, coastal
preferred soil pH: alkaline
minimum temp: -23°C
USDA zone: 6 to 9
description:
Clump-forming, tap-rooted perennial with pinnatifid, spiny, silver veined, dark-green basal leaves. Branching blue stems carry blue or grey-green, small thistle-like flowers with bluish-silver bracts, in mid and late summer.

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

propagation:
From seed or root cuttings. Also by division but this can be tricky.

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