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Eryngium aquaticum

Marsh rattlesnakemaster

Eryngium aquaticum is a flowering plant native across the southeastern coastal plain. It naturally occurs in brackish and freshwater marshes. It grows best in full sun to part shade, and in soils that are moist or wet. However, it can tolerate drought once established. This plant has unique spiky blue flowers that bloom in the summer and persist into winter. The flower stalks can get up to four feet tall, and attract lots of pollinators. Eryngium aquaticum is a great specimen plant in a yard, or for restoration and pond plantings.

Species name - Container sizeCommon nameStockPriceQuantity PricingAdd to request
Eryngium aquaticum - 4 inch

Marsh rattlesnakemaster

59 in stock

$9.3236+ $4.66ea
Eryngium aquaticum - Large Plug

Marsh rattlesnakemaster

480 in stock

$4.8450+ $2.42ea

Plant type

  • Flowering Perennial

Mature Height

  • Up to 6'

Wetland Indicator Status

  • (OBL) Obligate wetland


  • Salt Tolerant
  • Summer Bloomer
  • Fall Color
  • Butterfly and Pollinator Supportive

Planting Zone

  • Temporarily Inundated / Shallow Land
  • Littoral Shelf
  • Vegetated Shelf
  • Living Shoreline

Classification by Use

  • Constructed Wetland
  • Erosion Control
  • Rain Garden
  • SCM (Stormwater Control Measure)
  • Showy Native
  • Wetland Mitigation