Rowan
Sorbus aucuparia
Rowan (mountain ash) is one of the toughest, most useful small trees for a garden. Across Europe and into northern Asia (POWO) it climbs higher up mountainsides and shrugs off more cold, wind, and poor acid soil than almost any other tree, while delivering three full seasons of interest: ferny pinnate foliage, flat creamy heads of spring flowers, and dense clusters of orange-red autumn berries that birds strip almost as fast as they ripen. RHS gives it the Award of Garden Merit and rates it fully hardy (H7). The berries are edible only with preparation - raw they contain parasorbic acid and cause stomach upset, but cooking breaks it down to make the classic tart rowan jelly.
Climate fit: narrow (30/100)
Focal point
Border
Pollinator
Light
Full sun / Part shade
Water
Moderate water
Mature size
25-50 ft tall · 25 ft apart
Hardy in zones
3a-6b
brutally cold to cold winters
Native in Illinois
No
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Insect-pollinated: the flat heads of small creamy flowers are freely visited by bees and hoverflies, which carry the pollen.
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
Marginal
Zone 7a
Plotwright
0°F to 5°F
Won't grow here
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
⚠→✕
Marginal today, but likely out of range by 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 30 ecoregions - 13 climate-resilient through 2070 · 14 suited today · 3 newly possible by 2070. Best matches first.
Central Tallgrass prairie
›
Colorado Rockies forests
›
Eastern Great Lakes lowland forests
›
Gulf of St. Lawrence lowland forests
›
Nebraska Sand Hills mixed grasslands
›
Northeastern Coastal Forests
›
Northeastern Hardwoods
›
Northern Pacific Alaskan coastal forests
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Northern Tallgrass prairie
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Sierra Nevada forests
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Plant this, not that
Better fit for this place
For Chicago, IL, these are replacement suggestions: similar plants with a stronger hardiness fit now and/or in 2050.
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
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
Rowan educator packet
Rowan (mountain ash) is one of the toughest, most useful small trees for a garden. Across Europe and into northern Asia (POWO) it climbs higher up mountainsides and shrugs off more cold, wind, and poor acid soil than almost any other tree, while delivering three full seasons of interest: ferny pinnate foliage, flat creamy heads of spring flowers, and dense clusters of orange-red autumn berries that birds strip almost as fast as they ripen. RHS gives it the Award of Garden Merit and rates it fully hardy (H7). The berries are edible only with preparation - raw they contain parasorbic acid and cause stomach upset, but cooking breaks it down to make the classic tart rowan jelly.
Scientific name
Sorbus aucuparia
Plant type
tree
Hardiness
3a-6b
Light
full-sun, part-shade
Moisture
moderate
Spacing
300 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). Rowan (Sorbus aucuparia). Retrieved 2026, August 20, from https://plotwright.com/plants/sorbus-aucuparia
Sources used for this record
This record is compiled from the sources below.






