Nakashima Greenhouses
$7.50–$10.00Distance unavailable · 850 Quail Gardens Drive, Encinitas, CA 92024
RetailPickupDeliveryDelivery min $250
In stockIn stock1
trefle.io · Taken Sep 22, 2021 by Kai Best (cc-by-sa)
Asteraceae
Sneezeweed
Achillea ptarmica
Also known as Achillea sylvestris, Helen's flower, Swamp sunflower, Helenium
Zones 3–9Sun Full SunWater ModerateCare Low
Native Plants · Achillea · Sneezeweed · White-Flowers · Spreading · Hardy-Perennial · Medicinal · Yarrow-Relative · Cottage-Garden
Beginner-friendlyMedicinalAttracts pollinators
Toxicity: humans, dogs, cats, horses — keep out of reach and wear gloves when pruning.
In stock at 1 nurseryStock updated 9/6/2026
Sneezeweed is a hardy perennial that produces masses of small white flowers and spreads naturally. It prefers moist soil but tolerates some drought once established. Deadhead spent flowers to encourage continued blooming and divide clumps every 3-4 years to maintain vigor.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water deeply but infrequently, allowing soil to dry between waterings · Every 7-10 days
- Maintenance
- Low
- Soil
- sandy loam
- Soil pH
- 5–5.5
- Temperature
- -40°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 3a-9b
12345678910111213
Form & growth
Mature size and habit
- Mature height
- 12 in – 2 ft
- Spread
- 18 in
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Alberta, Austria, Baltic States, Belarus, Belgium, Central European Rus, Connecticut, Czechoslovakia, Denmark, East European Russia, Finland, France, FøRoyar, Germany, Great Britain, Greenland, Hungary, Iceland, Idaho
- Attracts
- Bees, Butterflies
Sources: trefle, usda
More Achillea
Related plants from the same genus
Buy this plant
1 nursery carries it