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botanical name:
Sisyrinchium californicum
Sisyrinchium californicum © Deeproot Plant Base
synonyms:  Sisyrinchium boreale, Sisyrinchium brachypus
family:  Iridaceae
characteristics: perennial, semi-evergreen
height: 0.60m
width: 0.15m
growth rate: medium
growth habit: spiky
leaf colour: grey-green
flower colour: yellow
main season: Summer
aspect: full sun
conditions: dry soil, moist soil, sandy soil
preferred soil pH: neutral-alkaline
minimum temp: -18°C
USDA zone: 5 to 8
description:
Short-lived semi-evergreen perennial with narrow sword-shaped, grey-green leaves. Broadly winged stems carry a succession of star-shaped, dark veined, yellow flowers in late spring and summer.

cultivation:
Well drained, poor to moderately fertile, neutral or slightly alkaline soil in full sun. Dislikes excessive winter wet.

propagation:
From seed or by division. May self seed freely in suitable conditions.

other notes:
From Western North America.

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