Eupatorium perfoliatum is a native perennial that shines in late summer, when flat clusters of tiny white flowers hover above strong, upright stems. In a garden setting it typically reaches about 36-48 inches tall and spreads about 18-24 inches, creating a bold, meadow-like look without taking over your design.

Give boneset a site with consistent moisture for best performance. It handles average soils, but it is especially useful where the ground stays damp: rain gardens, swales, pond edges, and low spots that catch runoff. Plant it in full sun for the fullest bloom, or in part shade where summers are hot or the soil stays wet for long periods.

Once established, keep the root zone evenly moist. Mulch helps conserve moisture and keeps competing weeds from getting started, and a slow-release organic mulch is often all the feeding it needs. Water during dry stretches, especially in summer, and avoid letting the planting area bake hard and dry.

As flowers open, you will notice plenty of pollinator activity. When the bloom season finishes, you can leave the seedheads for seasonal interest, or cut stems back to tidy the planting. Divide clumps in early spring if you want to refresh older plants or share them with friends.

Specifications

• Cold hardiness zone: 3-8 (-40 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun   Part sun
• Mature height: 36-48"
• Spread: 18-24"
• Tolerant of: Wet Conditions
• Attracts: Butterflies
• Native to the U.S.: Yes

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