•Status in Florida: Native
•Size at Maturity: Typically grows 2 to 4 feet tall and wide
•Phenology: Perennial herb with basal rosette of yucca-like leaves; cylindrical flower heads with small, greenish-white flowers in summer
•Life Cycle: Perennial
•Bloom Season: Summer
•Deciduous, Dioecious, Evergreen: Deciduous
•Sunlight Requirements: Full sun to partial shade
•Soil Texture: Well-drained sandy or loamy soils
•Soil pH: Tolerant of a wide range, but prefers slightly acidic to neutral (pH 5.5-7.0)
•Moisture Requirements: Drought-tolerant once established, prefers moderately moist soil
•Tolerance to Salt Spray: Low tolerance
•Recommended Landscape Uses: Naturalistic landscapes, prairie gardens, butterfly gardens, pollinator gardens
•Maintenance Tips: Low maintenance; cut back dead foliage in late winter or early spring; avoid overwatering
•Considerations: Spiky foliage can be sharp, handle with care; may self-seed in favorable conditions
•Edible: Not typically consumed
•Medicinal Uses: Traditionally used for various medicinal purposes, such as treating snakebites and as a diuretic
•Toxicity to Pets: Not known to be toxic, but spiky foliage may cause irritation
•Florida Native Companion Plant: Blazing star (Liatris spp.), butterfly milkweed (Asclepias tuberosa)
•Wildlife Benefit: Attracts pollinators such as bees and butterflies; provides habitat and food for various insects
Rattlesnakemaster, Eryngium yuccifolium
Bloom Season
Late Spring through Fall
Soil Type
Moist but well drained
Life Span
Perennial, long lived
Sun
Full Sun to Part Shade
Bloom Color
White, Green
Size
1-2' tall to 1' wide, with flower spikes reaching 4-5' tall
Drought Tolerance
Tolerant once established
Salt Tolerance
Low/No Tolerance
Phenology
Winter Dormant
pH
Acidic to Neutral
Native Habitats
Moist/wet sites. Cutthroat seeps, savannas, wet flatwoods, wet prairie, coastal flatwoods