Eryngium planum

Sea Holly

Family: Apiaceae (Carrot Family)

       

·        Hardiness Zones:  4-8

·        Height: 2-3 feet

·        Spread: 12-18 inches

·        Bloom Time: June to September

·        Bloom: steel blue, thistle-like flowers heads on tall, stiff, branched, violet-blue stems above foliage mound

·        Light: full sun

·        Soil: very well-drained sandy soils; tolerant of poor soils

·        Moisture: dry

·        Use: single specimen or grouping in perennial borders, cut and dried flowers; excellent in sun-baked areas of the landscape; attracts butterflies and hummingbirds

·        Care: low maintenance; deadhead to preserve neat appearance; susceptible to sprawling and root rot in moist and fertile soils (needs dry soils)

·        Concerns: no serious insect or disease problems

·        Native to: genus native to central and southeastern Europe

·        Notes: coarse clump-forming perennial; basal rosette of deep green, deeply toothed leaves;  deeply tap-rooted, so transplants poorly; flowers attract pollinators; deer and rabbit resistant; salt tolerant

·        Supplier: Kopke's Fruit of the Bloom

·        Teaching Garden Location & Code: Welcome Garden B159

 

       Content produced through:

       Dane County UWEX Master Gardener Volunteer Program 

 

       Questions?  

       Dane County UWEX Horticulture Program

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