Zone 9 · Blue-Eyed Grass
Planting Blue-Eyed Grass in Zone 9
Sisyrinchium angustifolium
✅ Blue-Eyed Grass thrives in zone 9 (hardy 4–9)
Can I plant today?
⏳ Not the right window
Blue-Eyed Grass has a specific planting window in zone 9. Check back in spring.
Evaluated for April 27, 2026 ·
Zone's last frost
around February 15
Zone's first frost
around December 15
Bloom window
May – June
Peak bloom
May
Sun required
full sun, part sun
Mature height
12"
Spacing
9" apart
Type
perennial
How to plant Blue-Eyed Grass in zone 9
Plant in spring in moist, well-drained soil. Actually an iris despite the name; charming small flowers.
Pair with these for continuous bloom
Blue-Eyed Grass peaks in May. These companions keep your bed in color before and after.
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