Where to Buy EFB-Resistant Hazelnut Trees in the USA¶
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Finding reliable sources for Eastern Filbert Blight (EFB)-resistant hazelnut trees is the critical first step for growers outside the traditional Pacific Northwest production zones. This guide explains where to buy EFB-resistant hazelnut trees in the USA, helping you navigate the complex landscape of resistant cultivars, nursery availability, and regional shipping constraints.
What "EFB-Resistant" Actually Means When Buying¶
Before purchasing stock, it is essential to understand that "resistance" is not a binary switch but a spectrum of genetic traits derived primarily from the American hazelnut (Corylus americana). The pathogen Anisogramma anomala, which causes Eastern Filbert Blight, is native to eastern North America and persists naturally in wild American hazelnuts. While these native plants are highly tolerant to the disease, they produce tiny, thick-shelled nuts that are not commercially viable for most growers. Conversely, the European hazelnut (Corylus avellana), which dominates global commerce, is largely susceptible to EFB, suffering from severe cankering, branch dieback, and eventual death.
When you buy "EFB-resistant" trees, you are typically purchasing interspecific hybrids or selections that combine the disease resistance of C. americana with the larger nut size and horticultural traits of C. avellana. For instance, the ‘Gasaway’ cultivar has provided the primary resistance gene for the industry in Oregon, but its effectiveness can vary in different climates. Growers in colder regions or the Eastern U.S. often look for selections related to C. americana ‘Rush’, which have remained free of EFB over decades of exposure. Understanding this distinction ensures you are buying trees that are not only resistant but also adapted to your specific climate and production goals.
Nursery Directory: Who Ships Resistant Stock¶
Identifying reputable nurseries requires looking beyond general garden centers, as most do not carry specialized EFB-resistant stock. The development of resistant hazelnuts has been driven by private breeders and nurserymen in states like Wisconsin, Minnesota, Michigan, and New York, as well as in Canada. These regions have a long history of breeding hazelnuts adapted to colder climates with durable EFB resistance.
While specific commercial nursery names fluctuate, growers should seek out specialized fruit tree nurseries or extension-affiliated programs that explicitly list EFB-resistant cultivars. In the Pacific Northwest, nurseries often stock ‘Yamhill’ and ‘Wheeler’, which are resistant to EFB and widely available for commercial plantings. For growers in the Eastern U.S., look for suppliers who specialize in Corylus hybrids derived from the ‘Rush’ line or other American hazelnut crosses. It is crucial to verify that the supplier sources their stock from reputable breeding programs, as the genetic integrity of the resistance is paramount. Always check if the nursery provides documentation on the specific cultivar’s resistance profile, as not all "resistant" labels are created equal.
Bare-Root vs Potted: What to Order¶
The choice between bare-root and potted hazelnut trees significantly impacts establishment success, cost, and availability. Bare-root trees are typically shipped during dormancy and are the standard for commercial orchards due to their lower cost and ease of handling. They are often available in larger sizes, such as 1/0 or 2/0 grades, which can lead to earlier fruit production. However, bare-root stock requires immediate planting and careful handling to prevent desiccation.
Potted or container-grown trees offer the advantage of being planted during a wider window of the growing season, which can be beneficial for growers who miss the bare-root shipping window. These trees often have a more developed root system, potentially leading to better initial survival rates in challenging soils. However, they are generally more expensive and may be available in smaller sizes. For EFB-resistant cultivars, which are sometimes produced in smaller quantities than standard European varieties, bare-root stock may be the only option available from many specialized breeders. Assess your planting timeline and labor capacity to decide which format best suits your operation.
Shipping Zones, Timing and Minimum Orders¶
Hazelnut trees are sensitive to shipping conditions, and most reputable nurseries restrict shipments to specific USDA hardiness zones to ensure survival. EFB-resistant varieties bred for colder climates, such as those from the Upper Midwest or Northeast, may have different shipping restrictions than those bred for the Pacific Northwest. Always confirm that the nursery ships to your specific zone, as hazelnuts generally require a certain number of chill hours to break dormancy and produce fruit.
Timing is critical for bare-root trees, which are typically shipped in late winter or early spring, just before bud break. Delays in planting can significantly reduce survival rates. Many specialized nurseries also enforce minimum order quantities, particularly for rare or newly released EFB-resistant cultivars. This is common among private breeders who may limit sales to maintain genetic diversity or manage production capacity. Plan your orders well in advance, as popular resistant cultivars like ‘Yamhill’ or experimental hybrids may sell out quickly. Verify the nursery’s shipping policy regarding damage or death upon arrival, as this is a common concern with live plant shipments.
Price Ranges by Cultivar and Tree Size¶
The cost of EFB-resistant hazelnut trees varies widely based on the cultivar, tree size, and source. Standard commercial cultivars like ‘Yamhill’ or ‘Wheeler’ are often more affordable due to higher production volumes in the Pacific Northwest. These trees are widely available and may range from a few dollars for small bare-root stock to higher prices for larger, container-grown specimens.
In contrast, specialized EFB-resistant hybrids, particularly those derived from American hazelnut crosses for Eastern U.S. climates, may command a premium price. These trees are often produced in smaller quantities by private breeders or specialized nurseries, leading to higher per-tree costs. Additionally, the price may reflect the tree’s age and size; larger, more mature trees with established root systems will cost more but may offer faster returns on investment. Always compare prices across multiple suppliers, but remember that the lowest price does not always guarantee the best genetic quality or disease resistance. Factor in the long-term value of EFB resistance, which can save significant costs in fungicide applications and tree replacement.
Questions to Ask Before You Buy¶
Before finalizing your purchase, ask the nursery specific questions to ensure you are getting the right stock for your needs. First, inquire about the specific cultivar’s EFB resistance rating and any available data on its performance in your region. Ask if the tree is a true-to-type graft or if there is any risk of bud sport or genetic drift. Second, request information on the rootstock used, as this can influence vigor, drought tolerance, and overall tree size. Third, ask about the nursery’s phytosanitary practices and whether the stock is certified free of other common hazelnut diseases or pests. Finally, clarify the return policy for damaged or dead trees, as this is a critical safeguard for your investment. By asking these questions, you can make an informed decision and ensure the long-term success of your hazelnut planting.