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botanical name:
Eryngium x tripartitum
Eryngium x tripartitum © Deeproot Plant Base
common name:  Sea holly
family:  Apiaceae
characteristics: perennial
height: 0.90m
width: 0.50m
growth rate:
growth habit:
leaf colour: dark green
flower colour: violet
stem/bark: blue
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
3-lobed, toothed and spiny dark-green leaves and branching blue stems carrying rounded heads of violet-blue flowers with grey-blue bracts.

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

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