nut variety in zone 5a
Yamhill hazelnut in zone 5a
Yamhill · Corylus species and hybrids
- Zone
- 5a -20°F to -15°F
- Growing season
- 150 days
- Chill needed
- 800 to 1500 below 45°F
- Days to harvest
- 100 to 130
The verdict
Detailed guidance for this section is being prepared. Check back soon.
About Yamhill
Sweet, rich flavor, smaller round nuts; fresh and processing. Compact OSU release with strong EFB resistance, productive in cooler sites.
Critical timing for zone 5a
Detailed guidance for this section is being prepared. Check back soon.
Common challenges in zone 5a
- ▸ Fire blight in pears
- ▸ Cedar-apple rust
- ▸ Late spring frosts
Disease resistance
Documented resistance for Yamhill; useful for low-spray management in zone 5a.
- eastern-filbert-blight
Modified care for zone 5a
Detailed guidance for this section is being prepared. Check back soon.
Yamhill in adjacent zones
Other hazelnut varieties for zone 5a
- American Hazelnut
Sweet, mild, small nuts; fresh, baking. Native Corylus americana, naturally EFB-tolerant. Multi-stem shrub for…
- Beaked Hazelnut
Sweet, intensely flavored, very small nuts; foraging quality, hedgerow use. Native Corylus cornuta, extremely …
- Jefferson
Sweet, rich, buttery; fresh, baking, confections, butter. Large round nuts. The Oregon State release that resi…
- Theta
Sweet, rich, large nuts with easy crack-out; baking and fresh. OSU pollinizer for Jefferson, EFB-resistant, pr…
Frequently asked questions
- Will Yamhill hazelnut grow in zone 5a?
Yes. Yamhill is recommended for USDA zones 5a through 7b, which includes zone 5a.
- Are there enough chill hours in zone 5a?
Hazelnut needs 800 to 1500 chill hours. Zone 5a typically meets this range; check local microclimate against historical chill totals to confirm.
- Does Yamhill resist regional diseases in zone 5a?
Yamhill carries documented resistance to eastern-filbert-blight, which can simplify low-spray management in zone 5a.
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Image: "Hazelnuts", by Fir0002 at English Wikipedia, via Wikimedia Commons, licensed under CC-BY Source.
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