Sisyrinchium nashii 'Suwannee'
Overview
Uses: Borders, rock gardens, pathway edging, containers, and small-space perennial beds.
Benefits: Soft blue, iris-like flowers with golden-yellow centers. Compact growth with strong pollinator appeal.
USDA Hardiness Zones: 6–10
Sun: Full Sun to Light Shade
Life Cycle: Hardy Perennial
Growth Habit: Clumping, Rhizomatous — tidy mound of narrow foliage.
Bloom Color: Light Blue with Yellow Center
Foliage Color: Bright Green, Grass-Like
Mature Height: 8"–10"
Mature Width: 12"
Bloom Season: Late Spring to Late Summer
Growth Rate: Moderate
Summary
A compact, iris-relative that brings soft blue color to sunny borders and pathways.
'Suwannee' forms a tidy mound of slender, sword-like foliage topped with star-shaped, baby-blue flowers accented by bright yellow centers. Though commonly called Blue Eyed Grass, it is not a true grass but a member of the iris family.
This cultivar performs especially well in warm, humid climates and is well suited for edging walkways, rock gardens, and smaller planting spaces.
Care
Blue Eyed Grass ‘Suwannee’ Care
Plant in full sun for best flowering. Light shade is tolerated, particularly in hotter southern climates.
Grow in moist, well-drained soil. While adaptable, consistent drainage is important, especially during winter.
Water regularly during establishment and during extended dry periods.
Apply a slow release fertilizer in spring if soil fertility is low.
Cut back foliage and spent flower stalks in late winter before new growth begins. Divide every few years in spring to maintain vigor.
Size
What Size is Blue Eyed Grass ‘Suwannee’ for Sale Online?
This plant ships in a greenhouse-grade grow pot and is well-rooted at time of shipment. If you have specific sizing questions, please contact us.
How Large Does Blue Eyed Grass ‘Suwannee’ Grow?
Mature plants typically reach 8–10 inches tall and approximately 12 inches wide, forming a compact clump.
Additional Information
Is Blue Eyed Grass actually a grass?
No. Despite its common name, Sisyrinchium belongs to the iris family and produces iris-like blooms.
Is it good for pollinator gardens?
Yes. Its nectar-rich blooms attract bees and butterflies. Explore more options in our Pollinator Plants collection.
Where does it work best in the landscape?
This compact perennial is ideal for edging and rock gardens. Browse additional compact selections in our Perennials collection or explore texture-focused options in our Rock Garden Plants collection.
