perennial
Goatsbeard
Aruncus dioicus
Preview: plant data is awaiting horticulturist review. A professional horticulturist hasn't reviewed our plant table yet. Lists still follow fixed rules for zone, sun, pets, deer and invasive status.
Aruncus dioicus is a slow-growing perennial for gardens in zones 3–7. It grows 4–6 ft tall and 3–4 ft wide, so plant it 3 ft apart. Give it part sun to shade and average water, and it copes with wet soil. It flowers white in May to July. In a FloraVista list it usually plays the filler role: a flowering plant that fills the middle or front of the bed. It is native to the Northeast, the Mid-Atlantic, the Midwest and the Pacific Northwest. Deer usually leave it alone, and it is toxic to dogs and cats. Our rules leave it out of lists in the Southeast, Florida and the Gulf, Texas and the South-Central states, the Desert Southwest and California, where summer heat, humidity or mild winters hold it back even inside its zone range.
Facts from our plant table
- Botanical name
- Aruncus dioicus
- Plant type
- Perennial, herbaceous
- Hardiness zones
- 3 to 7
- Sun
- Part sun (4–6 hours); Part shade (2–4 hours); Shade (under 2 hours)
- Water
- Medium; tolerates wet soil
- Soil
- Rich, moist soil.
- Mature size
- 4–6 ft tall × 3–4 ft wide
- Spacing
- 3 ft apart (centre to centre)
- Growth rate
- Slow
- Bloom
- May–Jul · white
- Roles in a bed
- Filler
- Styles
- natural, classic
- Deer resistance
- High: deer rarely eat it
- Pets
- Toxic to dogs and cats. Not in the ASPCA database and no reliable toxicity data found; marked toxic as a precaution pending review.
- Native to
- Northeast, Mid-Atlantic, Midwest and Pacific Northwest
- Pot size and price
- 1-gallon pot, typically $15–$25 (sometimes stocked)
- Plant in
- Spring or Fall
- First-year watering
- Water deeply once or twice a week through the first growing season; keep soil evenly moist, not soggy.
- Pruning
- Cut plumes after bloom; cut down in fall.
Sources: ASPCA Toxic and Non-Toxic Plant List (from general knowledge; not re-checked unless verification is web-checked); Missouri Botanical Garden Plant Finder and grower tags; State extension service guidance and USDA PLANTS distribution maps; Rutgers NJAES Landscape Plants Rated by Deer Resistance; Invasive Plant Atlas of the United States and state noxious weed lists; Typical 2026 US garden-centre and big-box retail listings (estimate). Not yet reviewed by a horticulturist.
Good companions
The plants our list engine most often puts in the same bed as Goatsbeard, across the sun, zone, pet, deer and style combinations it fits.
- Canadian wild gingerAsarum canadensegroundcover · zones 3–8
- Fringed bleeding heartDicentra eximiaperennial · zones 3–9
- Pennsylvania sedgeCarex pensylvanicaornamental grass · zones 3–8
- Christmas fernPolystichum acrostichoidesfern · zones 3–9
- Smooth hydrangea 'Annabelle'Hydrangea arborescens 'Annabelle'shrub · zones 3–9
- Western bleeding heartDicentra formosaperennial · zones 4–8
If you can't find it
Substitutes our engine offers for Goatsbeard: same role in the bed, passing the same rules.
How this page was made
This page was generated from this plant's record in FloraVista's plant table by fixed rules. The companions and substitutes come from the lists our rules engine composes. No named expert has reviewed this page.
Data status: the plant table is awaiting review by a horticulturist. Check each plant with a local nursery or extension office before you buy.
Sources
- Missouri Botanical Garden Plant Finder, state extension services and the USDA PLANTS database (zones, size, sun, water, bloom, native range)
- ASPCA toxic and non-toxic plant lists (dog and cat toxicity)
- Rutgers NJAES and regional extension deer-resistance ratings
- State noxious-weed and invasive-plant lists and the Invasive Plant Atlas of the US
- Typical US garden-centre listings (pot size and price band)
Generated . How FloraVista chooses plants