Rattlesnake Master is a striking Missouri native perennial that defies the typical look of its parsley family relatives. Rather than feathery foliage, it features bold, sword-shaped leaves with parallel veins and bristly edges that genuinely resemble yucca, rising 48 to 60 inches tall with showy flowers blooming from June through September. Hardy in zones 3 through 8, this low-maintenance plant thrives in dry, sandy soils and full sun, making it exceptionally drought tolerant and a magnet for butterflies and other pollinators. Once established, it asks very little of you, rewarding neglect with reliable blooms year after year.
1
Full Sun
Moderate
3-8
60in H x 36in W
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High
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The most distinctive feature of Rattlesnake Master is its architectural foliage that breaks every expectation you might have about members of the carrot family. Those 3-foot-long, sword-like leaves create a visual anchor in the garden, and they're anchored by an impressively deep taproot that makes this plant nearly unshakeable once settled in. Deer avoid it entirely, and it handles erosion, clay, and rocky soils with equanimity, making it far tougher than its delicate-sounding common name suggests.
Rattlesnake Master serves primarily as an ornamental perennial, valued for its distinctive foliage and showy flowers in naturalized plantings, prairie gardens, and xeriscaping projects. Its drought tolerance and low maintenance requirements make it especially useful in regions where water conservation matters. The plant works well in massed plantings where individual stems can support one another, a technique that resolves the structural challenges taller specimens might face.
No timeline data available yet for this variety.
Stratify seeds for 30 days indoors before sowing. Mix seed with damp sand or vermiculite, bag, and refrigerate at 35 to 40 degrees Fahrenheit. Sow seeds in a container, cover with plastic, and keep the medium lightly moist. Check frequently for germination and transplant seedlings as they emerge.
After the chilling period and once seedlings have developed, transplant outdoors to their final location in full sun and well-drained soil. Space 24 to 36 inches apart. Handle carefully because of the developing taproot.
Direct sow in fall or earliest spring, or use winter sowing methods. Sow seeds at a depth of 1/4 inch.
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“Rattlesnake Master is a native wildflower of the American tallgrass prairie, occurring naturally throughout Missouri in rocky woods, prairies, and glades. It was a common sight across the prairie landscape before settlement, and its survival as a cultivated plant represents a quiet conservation of prairie heritage. The common name 'button snake-root' reflects folk traditions around this plant, though it earned 'Rattlesnake Master' through historical use in frontier herbalism and folk medicine, a testament to its importance in early American plant knowledge.”