25 Seeds Wild Quinine Parthenium integrifolium Native Perennial

Wild Quinine (Parthenium integrifolium) is a native North American perennial known for its bold, rugged foliage and distinctive flat-topped clusters of small white flowers that bloom atop tall, sturdy stems through the summer months. Its architectural form and long-lasting blooms make it an excellent choice for meadow plantings, pollinator gardens, and mixed perennial borders.

The dense white flower heads create a textural, cloud-like effect in the landscape and hold up well when cut for fresh or dried arrangements. Plants form substantial basal clumps of large, coarse, serrated green leaves, with upright flowering stems that provide vertical interest from midsummer into early fall. This species integrates well into naturalized areas, prairie-style plantings, and low-maintenance borders.
Species: Parthenium integrifolium
Type: Herbaceous perennial
Plant_Habit: Upright clumping
Sun: Full sun to partial shade
Soil: Average to medium, well-drained
Zones: 4-8
Germination: Cold stratification for 30 days may improve results
Sowing: Surface sow, lightly press into soil, do not bury deeply
Spacing: 18-24 inches
Notes: Native wildflower; tolerates drought once established