General Culture:
Grow in medium to wet soils in full sun to part shade. Will grow in wet soils with shallow water, but will also prosper in garden loams given consistent moisture. Tall plants may sprawl, particularly if grown in overly fertile soils or in too much shade. May be grown from seed.
Noteworthy Characteristics:
Eryngo is a coarse, aquatic perennial that typically occurs in marshes and bogs from New Jersey south to Florida and west to Mississippi. It is mostly found along the coast. It is similar in general appearance to E. yuccifolium (see G500) which grows in much drier soils of rocky woods, prairies and glades. It is believed that some cultivated material sold as E. aquaticum is actually E. yuccifolium. Eryngo (also sometimes called sea holly) grows to 4’ tall. It features basal leaves that are linear to oblong-lanceolate and entire to remotely toothed. The upper leaves are sometimes spiny toothed to laciniate. Tiny white flowers (sometimes with a purplish tinge) bloom in summer in tight, rounded, flower heads.
Problems:
No serious insect or disease problems. Taller plants may need support.
Uses:
Water gardens, ponds, low spots. Borders.
© Missouri Botanical
Garden, 2001-2010
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