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Willamette Filbert Hazelnut Tree

Willamette Filbert Hazelnut Tree
Images shown are of mature plants

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Product Details

Growing Zones: 4-9 outdoors

(hardy down to -20℉) 
      4-9 outdoors
   Map 4-9 outdoors
Mature Height:
20-40 ft.
Mature Width:
10-12 ft.
Growth Rate:
Harvest Time:
Botanical Name:
Corylus avellana L.
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Product Description

Manageable Size Yet Sizable Bounties for Homeowners

Versatility is the name of the game when it comes to the Willamette Hazelnut Filbert Tree. It’s ideal for homeowners because of its manageable size but can be grown more naturally as a large shrub or kept even more size-conscious via selective pruning. Though Willamettes have the capability of 40-foot-high growth in their natural environments, they usually grow to an average of 26 feet in height when they’re left unpruned. The Filbert is synonymous with a best-of-both-worlds look.

Even better, the Willamette Hazelnut Filbert Tree boasts a ton of highly desirable benefits. Its attractive, richly-green leaves offer a valuable food source for several species of butterfly, so your yard will be reminiscent of a beautiful botanical garden with graceful wildlife and fresh foliage. Not to mention the main draw to this coveted plant: Mouth-watering hazelnuts. Though the gorgeous leaves of this deciduous tree drop, the hazelnuts will continue to burst forth into the fall.

These delicious hazelnuts can be consumed raw, saved for roasting or ground into pastes for recipes. Mouth-watering Filbert kernels are chock full of protein, vitamin B and other healthful minerals. And though these delectable little treats are found in supermarkets, shopping for them won’t be necessary with your new tree. It’s like having a supermarket right in your backyard.

Once your Filbert Hazelnuts are mature in early fall, they’ll drop to the ground below, ready to harvest. They require a drying period before they’re consumed, but the wait is worth it for these little bits of heaven. A mature Willamette Hazelnut Filbert Tree can produce up to 25 pounds of nuts in a year. Once your tree starts to produce, expect a new crop each year (and new crops up to 50 years at that!).

And even though your new Willamette Hazelnut Filbert Tree requires pollination by a compatible variety for best growth and production, it’s easy to ensure it thrives. Your new Filbert is a prime pick for any spot in your landscape. Order yours today!

Pollination Info

Willamette Filbert Hazelnut Tree Pollination

Willamette Filbert Hazelnut Trees are not self-fertile. You will need to plant another variety to achieve fruiting.

Customer Reviews & Photos

Planting & Care

The Willamette Hazelnut Filbert Tree ticks all the boxes of a gorgeous yet enormously rewarding botanical. Not only does it produce your favorite treat, but it also attracts stunning wildlife, acts as a natural windbreak, and provides a visual screen. Because your Willamette Hazelnut Filbert Tree grows most successfully in USDA hardiness zones 4-9, it thrives in the Pacific Northwest (and hails from Oregon’s Willamette Valley).

Best of all, compared with ‘Barcelona’ (the leading cultivar in Oregon), the Willamette Hazelnut Filbert Tree yields 50% more kernels and nuts with more attractive shells and fewer defects. What’s not to love?


Start your new Willamette Hazelnut Filbert Tree on the right foot with an adequate planting site. This tree requires fertile soil to thrive, so check your soil nutrients and pH before you plant. Your ideal soil should be between 6-7.0 in pH. Soil should also be well-drained. More detailed planting steps are listed below:

  1. Wet the tree’s roots thoroughly before planting and dig a hole wide enough and deep enough to accommodate the root ball.

  2. Ensure you plant your tree with enough room to accommodate its root system, as the Willamette’s roots tend to grow near the surface of the ground.

  3. Backfill your hole with enhance soil and tamp it firmly around the roots as you add each shovel-full or layer of soil.

  4. When the hole is ¾ full, add in two gallons of water (the last gallon should be treated with fertilizer) and let it soak. If you’re planting your tree during fall, consider waiting until spring to fertilize for best results.

  5. Complete the backfill of your hole.

A high number of chill hours are necessary to ensure reliable fruitfulness and yields. Though they vary for male varieties, female varieties and those with leaf buds need approximately 1200 chill hours between 41-44 degrees.

Watering and Fertilizing

Regular watering for the first two years is recommended. Once your new hazelnut tree is established, watering can be reduced to 1-2 times per month.

Mulching around the Willamette Hazelnut Filbert Tree with 3-4 inches of bark mulch helps maintain the soil’s moisture and reduce weed issues. As long as your tree appears healthy and produces nuts, fertilizing is unnecessary. If nut production begins to wane, fertilize your tree during early spring with a 10-10-10 balanced fertilizer.


Maintaining your new Willamette Hazelnut Filbert Tree is simple. Prune your tree during the winter by removing about a third of the older growth and cutting or sawing the stems back to ground level carefully. Thin out any overcrowded areas to keep the center of the tree light and ensure that any crossing branches are cut back. Leave the younger growth, which is twig-like and bears the majority of the female blooms.


Your Willamette Hazelnut Filbert Tree doesn’t rely on insects to pollinate nor does it self-pollinate. Your new tree relies on another cultivar and the wind, together, to pollinate. Your trees should be planted within 65 feet of each other so that they pollinate and product hazelnuts successfully.

Despite the need for a different cultivar to ensure fertilization, Willamette Hazelnut Filbert Trees bloom with both male and female flowers. Male florals are yellow and elongated, contrasting with female blooms which are red and small. Pollen travels with the breeze during winter to the female flowers of the hazelnut-producing tree. The pollen is then stored there and the tree remains dormant until spring when fertilization occurs, which signals the tree to begin the production of hazelnuts.


The delicious hazelnuts from your Willamette Hazelnut Filbert Tree will be ready to harvest as early as August, after they transition from a pale green hue to classic brown and begin to fall from the tree. Harvesting is hassle-free since the tree’s branches are very flexible, making it easy to pull them down and strip. Once all the hazelnuts are collected, drying them in the sun for a few days is recommended – it makes removal of the husks super easy. You can crack them open right away or store them for later. They keep well and will stay good for one or two years if they’re left in the shell.

Pest and Disease Resistance

Though big bud mites affect other cultivars, the Willamette Hazelnut Filbert Tree is somewhat resistant, making chemical control unnecessary in most situations. The Willamette also has a moderate level of resistance to Eastern Filbert Blight, a serious canker disease that often affects other filbert varieties. With a combination of cultural and chemical control methods, your Willamette Hazelnut Filbert can even be grown near affected areas.

Shipping Details

Most items ship the next business day unless otherwise noted

Estimated Shipping Time: Most orders ship immediately, however some orders may ship in 1-2 business days (we do not ship on the weekends) from date of purchase. As noted on the website, some items are seasonal, and may only ship in spring or fall. Once your order is shipped, you'll receive an email with a tracking number.

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