berry variety in zone 4a
Thiessen saskatoon (serviceberry) in zone 4a
Thiessen · Amelanchier alnifolia
- Zone
- 4a -30°F to -25°F
- Growing season
- 120 days
- Chill needed
- 1000 to 1500 below 45°F
- Days to harvest
- 60 to 80
The verdict
Detailed guidance for this section is being prepared. Check back soon.
About Thiessen
Very sweet, mild, the largest fruit of any saskatoon; fresh eating premium. Early-ripening Canadian selection, self-fertile and reliable.
Critical timing for zone 4a
Detailed guidance for this section is being prepared. Check back soon.
Common challenges in zone 4a
- ▸ Late frosts damage early bloomers
- ▸ Limited peach varieties
Modified care for zone 4a
Detailed guidance for this section is being prepared. Check back soon.
Thiessen in adjacent zones
Other saskatoon (serviceberry) varieties for zone 4a
- Northline
Sweet, rich, almond-blueberry character; fresh and processing. Productive Saskatchewan selection with concentr…
- Regent
Sweet, mild, dark blue-purple berries; fresh and processing. Compact 4-6 ft habit, ornamental as well as produ…
- Smoky
Sweet, mild, almond-blueberry flavor with hint of marzipan; fresh, jam, baking, drying. The Canadian commercia…
Frequently asked questions
- Will Thiessen saskatoon (serviceberry) grow in zone 4a?
Yes. Thiessen is recommended for USDA zones 3b through 6b, which includes zone 4a.
- Are there enough chill hours in zone 4a?
Saskatoon (Serviceberry) needs 1000 to 1500 chill hours. Zone 4a typically meets this range; check local microclimate against historical chill totals to confirm.
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Image: "Saskatoon", by Corvi Zeman, via iNaturalist, licensed under CC-BY Source.
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