Obsidian

  • Season: Early ripening
  • Main characteristic/s: Full, rich flavour, Well suited to fresh market
  • Breeder: USDA-ARS, Corvallis, USA
Characteristics of Obsidian
  • Bred by Dr Chad Finn
  • Very early ripening
  • Very attractive glossy fruit
  • Full, rich flavour
Cropping Season
Together with Metolius, Obsidian is the earliest ripening blackberry variety in the Pacific Northwest. The 50% pick date is some 4-5 days ahead of Siskiyou, 7 days before Marion and 2.5 weeks before Waldo.

Fruit Quality
The fruit of Obsidian are very attractive, glossy, somewhat conical in shape, with better uniformity compared to Marion, but not as uniform as Metolius. The fruit are firm, and when harvested fully-black have a very good, full and rich flavour. Fruit retain their black colour well after refrigeration or freezing.

Fruit Yield
Obsidian has a high yield potential, producing higher or comparable yields to all other varieties in trial in the USA. The yield was generally double that compared to the current early season standard variety, Siskiyou. Fruit are large, comparable to Siskiyou and averaged 6.8g in trials in the USA.

Plant Characteristics
Plants of Obsidian have a trailing habit, the canes being spiny, comparable to Marion, and are vigorous, similar to Marion and Silvan. Fruiting laterals are medium-long in length, and have similar stiffness to Chester Thornless and Marion. The fruit are well displayed and easy to pick.

Disease Resistance
Obsidian has been free of serious cane, leaf of fruit diseases in the USA. The variety has not shown any particular susceptible to Septoria leaf spot, purple blotch, cane and leaf rust.

Use of the Variety
Obsidian has excellent potential as early season variety for the fresh market. While it was released primarily for the fresh market, Obsidian also produces an excellent processed product and a significant amount has been planted for processing in the USA, despite the plant’s thorniness. Obsidian is expected to perform well in countries where trailing blackberries grow successfully, including Chile, New Zealand, UK, and the Mediterranean region.

Plant Supply
Obsidian is a non-protected variety. Obsidian is available from the following licensed propagators:

Propagation Licence Holders

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Sales Licence Holders

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Growing-on / Transformation Licence Holders

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