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Growing Info

Scarification
Scarification: Soak in water, let stand in water for 24 hours
Stratification
Stratification: cold stratify for 120 days
Germination
Germination: sow 1-2" deep, tamp the soil, mulch the seed bed

Native to: California
Native
Introduced

Juglans x Paradox

Paradox Black Walnut

In Stock: 5.9 lb (Total:9.943lb)
  • Juglans x Paradox

    All items have bulk rates priced in
select i.*, as2.state_abbr from inventory_item_manage i left outer join sheffields_2017.address_states as2 on (as2.state_name = i.CollectionLocale or as2.state_abbr = i.CollectionLocale) where i.inventory_id = '698725' group by i.id

Buying options

4.04 lb
CA
Orders of this lot will receive an additional 50%, at no additional cost, while supplies last.
5.9 lb
CA

Details

Germination:
98%
Germination test:
Cut (Full Seed)
Purity:
99%
Seeds per lb:
33
Quantity:
5.9 lb
Collected in:
California
Crop year:
2025
Min. hardiness zone:
8
Item ID:
1837027

No Export to These Countries

Australia, Japan

Growing Info

Scarification
Scarification: Soak in water, let stand in water for 24 hours
Stratification
Stratification: cold stratify for 120 days
Germination
Germination: sow 1-2" deep, tamp the soil, mulch the seed bed

Native to: California
Native
Introduced
Discover the allure of Juglans x Paradox, also known as Paradox Black Walnut, a captivating botanical marvel created by crossing Northern California walnut (J. hindsii) with European common walnut (J. regia). Revered for its vigorous growth and premium quality wood, this hybrid stands as a testament to the horticultural genius of Luther Burbank, who first recorded these hybrids in 1878. Its majestic stature, reaching heights of 40 to 60 feet with a broad canopy, makes it a stunning addition to landscapes across California and the Pacific seaboard.

This deciduous tree boasts intermediate characteristics between its parent species, featuring compound leaves with 11 to 23 finely serrated leaflets and bark that matures to a deeply furrowed, greyish-brown texture. Though primarily celebrated for its robust timber, Paradox Black Walnut also produces large, mildly flavored nuts encased in a thin shell, offering culinary enthusiasts a unique delight for baking and snacking.

Designed for adaptability, Paradox thrives in diverse soil types and is hardy in USDA zones 8. Its remarkable drought tolerance and reduced maintenance requirements make it a popular choice for both timber production and as a vigorous rootstock for J. regia in the Californian walnut industry. Embrace the blend of beauty and utility that Juglans x Paradox brings with its unique heritage, rapid growth, and multifaceted applications in woodworking and gastronomy.

Our seed is collected from hybrid parent trees in the F2 generation, ensuring that you're getting the very best in terms of growth and disease protection

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(315) 497-1058
269 NY-34 Locke NY 13092
seed@sheffields.com

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