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Planting
Days to maturity
Seasonal yields
Sow indoors · Direct sow · Transplant outdoors
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Plant · P-1097
White Boneset
Ageratina havanensis
White Boneset, also called Havana Snakeroot, is a rounded, many-branched perennial shrub in the aster family that dies back to bare wood after a hard freeze and resprouts vigorously from the base. Fragrant white to pink flower clusters cover the plant from late summer into fall and draw a heavy flush of butterflies, moths and hummingbirds, serving as a larval host for the Rawson's metalmark butterfly. It thrives in dry, well-drained, rocky or limestone-derived ground in full sun to partial shade and tolerates extended drought once established.
Record at a glance
Growing profile
- Sun
- Full Sun · Partial Sun
- USDA zone
- USDA 8–10
- Soil
- Sand · Loam · Clay
- Moisture
- Dry
Vertical layer
Shrub- Soil pH
- Not yet recorded
- Plant type
- Perennial
- Mature height
- 2–6 ft
- Mature spread
- Not yet recorded
- Plant spacing
- Not yet recorded
- Root type
- Not yet recorded
- Spread pattern
- Seed
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The deeper layer
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- Primary
- Locked ecological function
- Secondary
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- Byproduct
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Behind the record
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