Eryngium

 
Name  Eryngium planum "Blaukappe"(Blue Cap)
Hardiness  Zone 5
Light  
Height  30"
Bloom Time  July-October
Uses  
Qualities Native to dry, rocky places.  Clump forming tap rooted, evergreen perennial with oblong to ovate toothed. dark green basal leaves.  Spiny blue tinted stem leaves.  From mid summer to fall, strong branching stems bear intense blue spherical shaped flower heads with linear spiky blue bracts to 30" tall.

 

Name  Eryngium planum "Sapphire Blue"
Hardiness  Zone 5
Light  
Height  30"
Bloom Time  July-October
Uses  
Qualities Blooms of Bressingham- Larger flowers than Blue cap.  Intense steel blue color.

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