Rattlesnake Root

(Nabalus altissima)

Rattlesnake Root (Nabalus altissima)

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Estimated Native Range
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Summary

Nabalus altissima, commonly known as Rattlesnake Root, is a deciduous perennial herb native to rich, moist deciduous forests, often found in the understory or along forest edges in the Eastern United States and adjacent areas of Canada. It typically grows to a height of 2-6 feet (0.6-1.8 meters) and a width of 2-3 feet (0.6-0.9 meters). The plant features tall, slender stems topped with clusters of small, daisy-like flowers that are yellow, green, and white, blooming in the late summer to fall. The flowers are not particularly showy but add a subtle charm to woodland gardens.

Rattlesnake Root is valued for its adaptability to shade and its contribution to native plant gardens, where it provides food for pollinators and local wildlife. It is often used in naturalized areas, shade gardens, and as a border plant in more informal settings. Gardeners appreciate its tolerance of full shade conditions, although it can also handle part shade. It requires consistently moist soil with good drainage and can be watered regularly to maintain medium to high soil moisture levels. While generally disease-free, it can occasionally suffer from rust or leaf spot. Rattlesnake Root is not known for aggressive roots or significant invasiveness, making it a reliable choice for cultivation in appropriate settings.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 2-6 feet
  • Width: 2-3 feet
  • Growth Rate: Moderate
  • Flower Color: Green, White, Yellow
  • Flowering Season: Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Shade
  • Water: Medium, High
  • Drainage: Medium

Common Uses

Butterfly Garden, Edible*Disclaimer: Easyscape's listed plant edibility is for informational use. Always verify the safety and proper identification of any plant before consumption., Low Maintenance

Natural Habitat

Rich, moist deciduous forests and forest edges

Other Names

Common Names: Tall Rattlesnakeroot , Tall White Lettuce , Tall White Rattlesnakeroot , Prenanthe Élevée , Prenanthe Très Haute

Scientific Names: Prenanthes altissima , Nabalus altissima , Prenanthes altissima var. cinnamomea , Prenanthes altissima var. hispidula , Prenanthes altissima f. altissima , Prenanthes altissima var. altissima , Prenanthes cordata , Nabalus altissimus var. ovatus , Nabalus cordatus , Prenanthes altissima f. hispidula

GBIF Accepted Name: Nabalus altissima (L.) Hook.