25 Wild Quinine Seeds Parthenium integrifolium Hardy Native Perennial Herb

Wild Quinine is a hardy North American native perennial known for its bold, textured foliage and tall, branching stems topped with dense clusters of small white flowers. Blooming through the heat of summer, it brings a distinctive wildflower character to meadows, native plantings, and mixed perennial borders, and its upright form adds reliable structure to the garden across the season.

The flowers are long-lasting and hold well, making them a fine choice for cut arrangements, while the deep green, coarsely toothed leaves form a substantial clump that looks good from spring onward. Wild Quinine fits naturally into pollinator-friendly landscapes, prairie-style plantings, rain gardens, and low-maintenance areas, and it pairs well with grasses and other sun-loving natives.
Species: Parthenium integrifolium
Type: Herbaceous perennial
Plant Habit: Upright, clump-forming
Sun: Full sun to partial shade
Soil: Average, well-draining; tolerates clay and dry conditions once established
Zones: 4 through 8
Germination: Cold stratification recommended; sow surface-lightly covered and keep evenly moist
Sowing: Start indoors 8 to 10 weeks before last frost or direct sow in autumn
Spacing: 18 to 24 inches apart
Days to Bloom: Flowers from early to late summer in the second year
Notes: Drought tolerant once established; deadhead to prolong bloom or leave seed heads for winter interest