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botanical name:
Centaurea 'John Coutts'
Centaurea 'John Coutts' © Deeproot Plant Base
common name:  Knapweed
synonyms:  Centaurea dealbata 'John Coutts', Centaurea hypoleuca 'John Coutts'
family:  Asteraceae
characteristics: perennial
height: 0.60m
width: 0.50m
growth rate: fast
growth habit: clump
leaf colour: green
flower colour: pink
fruit colour: grey
main season: Summer
aspect: full sun, part shade
conditions: moist soil
preferred soil pH: neutral-alkaline
minimum temp: -20°C
USDA zone: 4 to 8
Clump forming perennial with pinnatifid, wavy-edged, green leaves, grey-green underneath. Deep rose-pink flowers in summer followed by attractive seed heads..

Well drained soil in full sun or part shade. Normally requires staking.

other notes:
A hybrid of C. dealbata or C. hypoleuca, or both?
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