Diablo Ninebark vs Yamhill Hazelnut - TreeTime.ca

Diablo Ninebark vs Yamhill Hazelnut

Physocarpus opulifolius Diablo

Corylus avellana Yamhill

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(new stock expected: fall of 2026)

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Diablo Ninebark
Yamhill Hazelnut

Diablo Ninebark is a small, low maintenance, multi-stemmed shrub, that is used to add texture or color to any yard. This plant grows dark purple leaves in the spring and grows slightly faster than Common Ninebark. It features flaky red to brown bark, clusters of white flowers, and long, maple-like leaves. Diablo Ninebark can make a dense and colorful hedge, or it can be an attractive ornamental by itself.

The Yamhill Hazelnut is a tasty, relatively cold hardy hazelnut that is a popular European variety.

It is known to be a strong grower and has moderate eastern filbert blight resistance. It is a suitable pollinizer for the York Hazelnut and European Hazelnut.

Introduced by Oregon State University, The Yamhill Hazelnut is used by Ferror Roche for their candy and chocolate spread desserts.

Not all hazelnuts pollinate with each other so it is important to pick the correct pollination pairs. Two compatible varieties of hazelnut are required to produce nuts. Nuts will only be produced once maturity is reached, around 2-3 years.

Diablo Ninebark Quick Facts

Yamhill Hazelnut Quick Facts

Zone: 3a
Zone: 5a
Height: 2.4 m (8 ft)
Height: 3 m (10 ft)
Spread: 1.8 m (6 ft)
Spread: 1.5 m (5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: normal
Growth rate: fast
Growth rate: medium
Life span: short
Life span: medium
Suckering: low
Suckering: low
Maintenance: medium
Maintenance: medium


Foliage: reddish-purple
Fall colour: yellow
Bark: brown to red, exfoliating
Flowers: white
Berries: red
Seeds: inflated seed capsules
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: eastern ninebark, purple ninebark