Sneezewort
Achillea ptarmica
Sneezewort (Achillea ptarmica) is a hardy, clump-forming herbaceous perennial grown for its loose, airy sprays of small, button-like white flower heads from June to August, carried above narrow, linear, finely and sharply toothed dark-green leaves on upright stems. POWO (Kew) gives its native range as across Europe and temperate Asia - from Britain, Ireland, and Scandinavia through central and eastern Europe to Japan, Kamchatka, Sakhalin, and the Kuril Islands - and it is introduced and naturalised widely across North America (much of the northeastern US and Canada, plus the Pacific Northwest), so in North America it is a garden escape rather than a native. RHS lists it as a fully hardy perennial (H7) for full sun and moist but well-drained soil, and it is hardy across roughly USDA zones 3a-9b. The honest caveat is its running, rhizomatous rootstock: the species form spreads at the root and can colonise a border, so it is best given room, a contained spot, or the double, largely-sterile cultivars such as the popular Pearl Group / "The Pearl", which give cleaner, fuller white pompoms (long used as a cut flower) but still travel at the root. Its leaves have a long folk history - chewed they give a numbing, Sichuan-pepper-like tingle, and the dried plant was used as a sneezing powder, the source of the names sneezewort and ptarmica - so it is a pungent, parts-edible herb rather than a salad green. It is a good, accessible nectar source for bees and hoverflies.
Climate fit: moderate (62/100)
Pollinator
Border
Filler
Light
Full sun / Part shade
Water
Moderate water
Mature size
1.5-3 ft tall · 18" apart
Hardy in zones
3a-9b
brutally cold to frosty winters
AHS heat range
1-8
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
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What matters in the garden is that the small, open, white flower heads are easy, accessible nectar and pollen: honey bees, bumblebees, and hoverflies work the loose summer sprays steadily, making it a reliable, low-fuss pollinator plant.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 42 ecoregions - 34 climate-resilient through 2070 · 5 suited today · 3 newly possible by 2070. Best matches first.
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Sneezewort educator packet
Sneezewort (Achillea ptarmica) is a hardy, clump-forming herbaceous perennial grown for its loose, airy sprays of small, button-like white flower heads from June to August, carried above narrow, linear, finely and sharply toothed dark-green leaves on upright stems. POWO (Kew) gives its native range as across Europe and temperate Asia - from Britain, Ireland, and Scandinavia through central and eastern Europe to Japan, Kamchatka, Sakhalin, and the Kuril Islands - and it is introduced and naturalised widely across North America (much of the northeastern US and Canada, plus the Pacific Northwest), so in North America it is a garden escape rather than a native. RHS lists it as a fully hardy perennial (H7) for full sun and moist but well-drained soil, and it is hardy across roughly USDA zones 3a-9b. The honest caveat is its running, rhizomatous rootstock: the species form spreads at the root and can colonise a border, so it is best given room, a contained spot, or the double, largely-sterile cultivars such as the popular Pearl Group / "The Pearl", which give cleaner, fuller white pompoms (long used as a cut flower) but still travel at the root. Its leaves have a long folk history - chewed they give a numbing, Sichuan-pepper-like tingle, and the dried plant was used as a sneezing powder, the source of the names sneezewort and ptarmica - so it is a pungent, parts-edible herb rather than a salad green. It is a good, accessible nectar source for bees and hoverflies.
Scientific name
Achillea ptarmica
Plant type
perennial
Hardiness
3a-9b
Light
full-sun, part-shade
Moisture
moderate
Spacing
18 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Sneezewort (Achillea ptarmica). Retrieved 2026, August 20, from https://plotwright.com/plants/achillea-ptarmica
Sources used for this record
This record is compiled from the sources below.





