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Oak Summit Nursery

Thiessen Saskatoon Seeds

Thiessen Saskatoon Seeds

Pack contains: 30+ seeds

Regular price $8.95 CAD
Regular price Sale price $8.95 CAD
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Also sold as a plant: Thiessen Saskatoon · from $12.00 Seed grown plants may differ from a named cultivar.

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Thiessen Saskatoon is a long established Amelanchier alnifolia cultivar. It comes from a plant found by Maria Loewen Thiessen at Hepburn, Saskatchewan, in 1906, and was introduced in 1976. It was selected for large sweet berries that can reach about two thirds of an inch across, among the largest Saskatoon fruit.

Thiessen grows as a taller open shrub or small tree with berries ripening over several weeks. Seedlings are not clones and will vary, although many may retain useful traits in berry size or flavour.

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Starting this seed

  1. Cold3 monthsCold stratification
  2. SowAfter the cold stage
Hardiness
Zone 2
Mature size
12 to 14 ft
How to stratify seed

In the fridge. Put the seed in a bag with a damp medium such as peat moss, vermiculite, sand or coco coir. The medium is only there to hold moisture. Keep the bag in the fridge, above freezing, for the cold period shown, then sow.

Or outside. Sow the seed outdoors in the fall and let winter do the cold period.

The full stratification guide →

The plant these seeds grow into

Growing details

The parent
Early, with large fruit and little suckeringSeedlings will vary
Pollination
Self fruitfulBees and a second plant can increase the crop
Site
Full sunLoam or sandy loam with steady moisture. Avoid ground that stays wet
Foliage
Oval to round leaves, toothed on the upper halfYellow to orange in fall
Disease
Fire blight, rust and leaf spot can occur
Cold hardinessZone 2 · Canadian maps for this plant
Cold hardiness · Zone 2
Canadian climate map with provinces outlined; highlighted minimum zone: 2

Zone 2 and warmer

The map shows minimum winter hardiness. Soil, moisture and summer warmth also affect how a plant grows.

About these maps

Climate: Natural Resources Canada, 1991–2020. Provincial distribution: VASCAN via retained botanical research. Province outlines: Natural Earth, public domain.

Open Government Licence – Canada