Plants
Serviceberry planting zones
Serviceberry covers 2a–9b, but the zone is only half the answer. All 4 types below carry their flower display through the spring freeze window, so the date that window closes in your zone decides whether a late freeze costs you a season of flowers.
Published October 22, 2026 · Cite this page
The types
Which serviceberry you are choosing between
| Type | Zones | A late freeze |
|---|---|---|
| Saskatoon serviceberry Amelanchier alnifolia | 2a to 7b, then too hot | Exposed A shrub with, Penn State says, the best fruit of the genus. Range is Minnesota’s rating for the cultivar Regent. |
| Allegheny serviceberry Amelanchier laevis | 4a to 9b, then too hot | Exposed The large one: Minnesota gives this species, which it calls smooth serviceberry, 40 to 45 feet. Range from Penn State. |
| Shadblow serviceberry Amelanchier canadensis | 4a to 9b, then too hot | Exposed Native to Pennsylvania; flowers open before or with the leaves (Penn State). |
| Downy serviceberry Amelanchier arborea | 5a to 8b, then too hot | Exposed Large shrub or small tree, native to Florida (UF). Penn State calls its fruit not very flavorful. |
Zone ranges and bloom habit are a judgement — horticultural convention, not a measurement, and the same standing as the heat ratings on our crop tables. Everything below this panel is measured.
Zone by zone
Which serviceberries are hardy where, and when the freeze lands
The two left columns come from the variety table above — a judgement. The two right columns are measured: they are the median last spring freeze across every NOAA station the zone’s ZIP codes actually cite, and how much later the one-year-in-ten freeze arrives.
| Zone | Hardy here | Flowers exposed | Last spring freeze | 1 year in 10 |
|---|---|---|---|---|
| 2a | 1 of 4 | 1 | only 13 stations — too few to publish a range | |
| 2b | 1 of 4 | 1 | only 8 stations — too few to publish a range | |
| 3a | 1 of 4 | 1 | only 10 stations — too few to publish a range | |
| 3b | 1 of 4 | 1 | May 12 – May 30 across 92 stations | about 14 days later |
| 4a | 3 of 4 | 3 | May 6 – May 27 across 298 stations | about 14 days later |
| 4b | 3 of 4 | 3 | May 2 – June 1 across 477 stations | about 14 days later |
| 5a | 4 of 4 | 4 | April 28 – May 31 across 718 stations | about 14 days later |
| 5b | 4 of 4 | 4 | April 22 – May 28 across 752 stations | about 15 days later |
| 6a | 4 of 4 | 4 | April 18 – May 24 across 1004 stations | about 16 days later |
| 6b | 4 of 4 | 4 | April 11 – May 19 across 991 stations | about 16 days later |
| 7a | 4 of 4 | 4 | April 5 – May 9 across 941 stations | about 17 days later |
| 7b | 4 of 4 | 4 | March 30 – April 26 across 679 stations | about 16 days later |
| 8a | 3 of 4 | 3 | March 20 – April 16 across 689 stations | about 17 days later |
| 8b | 3 of 4 | 3 | March 7 – April 17 across 700 stations | about 19 days later |
| 9a | 2 of 4 | 2 | February 15 – April 6 across 446 stations | about 22 days later |
| 9b | 2 of 4 | 2 | February 2 – April 6 across 218 stations | about 27 days later |
“Hardy here” and “flowers exposed” are a judgement, from the variety table above. The freeze dates are measured — NOAA 1991–2020 climate normals, and the range is across the stations the zone’s own ZIP codes cite rather than one station chosen to speak for it.
Why the date matters
Your zone does not tell you your last freeze
Across the 13 zones above that publish a range, the median last spring freeze varies by 34 days inside a single zone — 18 days even in the tightest, zone 3b, and 63 in the widest, zone 9b. Two gardens with the same zone on the label can be a month apart on the date that decides whether serviceberries flower.
And the median is not the risk. Across the 6,191 NOAA stations serving these zones, the freeze that arrives one year in ten lands a median of 16 days after the median date, and 22 days after it at the tenth of stations where that tail runs longest. A variety marked exposed above has its flowers standing in front of that whole window, not in front of one date.
⛔ We publish no temperature at which a bud is lost. NOAA’s normals give dates, not damage thresholds, and inventing a number to bridge the two is the one thing this site refuses everywhere else. What is on this page is when the freeze arrives and which flowers are out when it does.
Where serviceberry grows
Serviceberry (Amelanchier) is native across North America. Penn State Extension says its species have adapted to conditions from Canada to the southern United States and from the Atlantic coastal plains to the Mountain West. University of Minnesota Extension rates the genus for zones 2 to 8, depending on the cultivar.
At the southern end, UF lists downy serviceberry for zones 5A to 8B and native to Florida. In Colorado, CSU Extension lists Amelanchier alnifolia, the Saskatoon serviceberry, for planting from about 5,000 to 10,000 feet, and Utah serviceberry as a smaller native shrub.
Small tree or shrub
University of Minnesota Extension says serviceberries range from 4 to 25 feet tall and 4 to 15 feet wide, as large shrubs or single- or multi-stemmed small trees. Some species run larger: it gives smooth serviceberry 40 to 45 feet. Penn State says some species and cultivars can be pruned into a single-stemmed small tree, and that running serviceberry stays 4 to 6 feet but spreads into thickets.
| Cultivar (University of Minnesota) | Size, height by width | Fall color |
|---|---|---|
| Regent | 6 by 8 feet, compact and rounded | Yellow and red |
| Standing Ovation | 15 by 4 feet, narrow and upright | Red and orange |
| Rainbow Pillar | 20 by 10 feet, upright | Orange and red |
| Autumn Brilliance | 25 by 15 feet, rounded | Red |
| Princess Diana | 30 by 20 feet, spreading | Red |
Fruit for birds and people
The fruit ripens to dark purple in June in Minnesota and can be eaten fresh or made into jams, jellies and pies (University of Minnesota). UF/IFAS notes that birds eat it quickly.
- Best for fruit: Penn State says Saskatoon serviceberry has the best fruit, with cultivars including Smokey, Northline, Thiessen, Regent and Pembina, and that downy serviceberry fruit is not very flavorful.
- Sun: Minnesota and Penn State both say fruit is best in full sun.
- Harvest: Penn State suggests bird netting, picking a little early because the fruit ripens after picking, and harvesting in the morning once the dew has dried. Plants are self-fruitful, and tend to bear larger crops every other year.
- Storage: Penn State says there are no research-based recipes for canning serviceberries; freeze them, or make freezer jam.
Planting and care
- Light: full sun to full shade, with the most fruit in full sun (University of Minnesota).
- Soil: prefers loam and tolerates sand and clay, but needs good drainage; Minnesota gives pH 5.5 to 7.0, tolerating higher. Penn State warns that heavy clay can lead to root rot.
- Water: Minnesota says lightly moist to moist soil. Penn State says water through the first year, and afterwards in dry spells, with a light mulch.
- Pruning: Penn State says prune while dormant to keep the canopy open, remove damaged and crossing branches and suckers, and remember that flowers and fruit form on wood two to four years old.
Fall color and problems
Fall color runs from yellow to red: University of Minnesota says yellow to red, UF/IFAS yellow to dull red for downy serviceberry, and CSU orange to red for Saskatoon.
University of Minnesota says serviceberry has no serious disease or pest problems. Penn State notes powdery mildew under favorable conditions. For downy serviceberry in Florida, UF/IFAS lists borers, spider mites and aphids, as well as powdery mildew.
Common mistakes
- Planting in wet, poorly drained or heavy clay soil (University of Minnesota, Penn State).
- Choosing downy serviceberry for fruit; Penn State says Saskatoon types taste better.
- Shade when you want fruit: both Minnesota and Penn State say fruit is best in full sun.
- Pruning out all the older wood. Flowers and fruit form on two- to four-year-old wood (Penn State).
- Leaving suckers on a plant meant to be a small tree (Penn State).
- Trying to can the fruit. There is no tested recipe; freeze it instead (Penn State).
We found no Texas A&M source on serviceberry, so Texas advice on this page is limited. For Texas, ask your county AgriLife Extension office.
Your ZIP code
Your ZIP, your answer
Enter your ZIP code to see your USDA zone, which of the 4 types on this page are rated for that zone and when its late-freeze window runs, read from the table on this page, and the freeze dates of the NOAA station nearest you.
Your answer appears here.
Full details for any ZIP code: ZIP code zone finder.
Questions
- What zones does serviceberry grow in?
- University of Minnesota Extension rates serviceberry for zones 2 to 8, depending on the cultivar. The table above gives each type’s range; downy serviceberry, for example, is listed for zones 5A to 8B by UF.
- Is serviceberry a tree or a shrub?
- Both. University of Minnesota Extension says serviceberries range from large shrubs to single- or multi-stemmed small trees, 4 to 25 feet tall, and Penn State says some can be pruned into a single-stemmed tree.
- Can you eat serviceberries?
- Yes. University of Minnesota Extension says the fruit can be eaten fresh or used in jams, jellies and pies. Penn State says Saskatoon serviceberry has the best-tasting fruit, and that there is no tested recipe for canning it, so freeze the berries or make freezer jam.
- When are serviceberries ripe?
- University of Minnesota Extension says the fruit ripens to dark purple in June in Minnesota. Penn State suggests picking a little early, because birds take the fruit fast and it keeps ripening after picking.
- Does serviceberry have pest problems?
- Few. University of Minnesota Extension says no serious ones; Penn State notes powdery mildew in favorable conditions; and UF/IFAS lists borers, spider mites, aphids and powdery mildew for downy serviceberry in Florida.
Sources
Freeze dates on this page are NOAA 1991–2020 Climate Normals, for every station the ZIP codes in each zone cite. Zones are the USDA Plant Hardiness Zone Map, 2023. The type table is a judgement, as labelled above. Growing advice is quoted from the extension publications below, each written for its own area.
- University of Minnesota Extension, Serviceberry , by Julie Weisenhorn, Kathy Zuzek and Beth Berlin (Reviewed 2026). Written for: Minnesota (USDA zones 3a–5a).
- University of Minnesota Extension, Trees and shrubs for pollinators . Written for: Minnesota (USDA zones 3a–5a).
- Penn State Extension, Serviceberry in the Garden and in the Kitchen , by Susan Marquesen (Updated March 17, 2025). Written for: Pennsylvania (USDA zones 5b–8a).
- Penn State Extension, Rain Garden Plants: Serviceberry (Updated December 3, 2025). Written for: Pennsylvania (USDA zones 5b–8a).
- Colorado State University Extension, Native Shrubs for Colorado Landscapes . Written for: Colorado (USDA zones 4a–7a).
- UF/IFAS EDIS, Amelanchier arborea: Downy Serviceberry (ST073) (Accessed October 2026). Written for: Florida (USDA zones 8b–11b).
- University of Florida, Trees and Powerlines, Downy Serviceberry (Accessed October 2026). Written for: Florida (USDA zones 8b–11b).
Published October 22, 2026
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- All plant guides
- When to Plant Trees and Shrubs in Fall, by Zone — watering and mulch after planting, and the last fall planting date for each zone
- ZIP code zone finder — your exact USDA zone, and your nearest NOAA station’s freeze dates
- What survives my winter — the same zone arithmetic over 74 perennial edibles, which is a separate table from the one above
- When to start my seeds — the spring calendar anchored on the same measured last-freeze dates
- Your hardiness zone is not a planting date — the whole dataset behind the spread quoted above