Hazelnuts, also known as filberts, are a delightful and nutritious nut enjoyed worldwide. Growing hazelnuts in Massachusetts can be a rewarding endeavor for gardeners and small-scale farmers alike. The state’s climate and soil conditions present unique challenges but also provide opportunities for cultivating healthy hazelnut plants with careful planning and management. This article explores practical ideas and best practices for growing hazelnuts in Massachusetts soil, offering insights on site selection, soil preparation, planting, care, and harvesting.
Before diving into specifics, it’s important to understand the basic requirements of hazelnuts (Corylus spp.) for healthy growth:
Massachusetts, with its humid continental climate, cold winters, and acidic to neutral soils, offers a moderately suitable environment for hazelnut cultivation. However, selecting the right site and soil amendments is crucial.
Native American hazelnut species (Corylus americana) and hybrid cultivars developed for northern climates are most likely to succeed in Massachusetts.
Soil quality directly impacts hazelnut growth and productivity. Massachusetts soils vary widely but often tend towards acidic pH levels due to organic matter accumulation and rainfall patterns.
Conduct a comprehensive soil test before planting to determine:
– pH level
– Nutrient content (NPK – nitrogen, phosphorus, potassium)
– Organic matter percentage
– Drainage capacity
Local cooperative extension offices provide affordable soil testing services along with interpretation help.
Hazelnuts prefer slightly acidic to neutral soil (pH 6.0–7.5). In Massachusetts:
– Acidic soils below 6.0 should be amended with agricultural lime.
– Apply lime several months before planting to allow pH correction.
– Avoid overly alkaline soils as they may cause nutrient deficiencies.
Hazelnut roots do not tolerate waterlogged conditions.
– Choose a site with good natural drainage or use raised beds if drainage is poor.
– Incorporate organic matter such as compost or well-rotted manure to improve soil structure.
– Avoid heavy clay soils or areas prone to standing water during heavy rains.
Based on soil test results:
– Incorporate balanced fertilizers or organic amendments.
– Avoid excessive nitrogen which promotes vegetative growth at the expense of nut production.
– Phosphorus and potassium are essential for root development and nut formation.
Choose a location that offers:
– Full sun exposure (at least 6 hours daily)
– Protection from strong winter winds
– Air circulation to reduce humidity around foliage
– Space away from large trees competing for nutrients and sunlight
The best time to plant bare-root hazelnut seedlings or transplants is early spring after the last frost or late fall before ground freezes.
Plant shrubs approximately 12–15 feet apart within rows spaced 15–20 feet apart. Closer spacing encourages earlier yields but may increase disease pressure due to reduced airflow.
Since hazelnuts are wind-pollinated, plant at least two compatible pollinizer cultivars nearby within 50 feet to ensure good nut set.
Consistent moisture is critical during the first two years until plants establish strong roots.
– Provide about 1 inch of water per week via rainfall or irrigation during dry spells.
– Avoid overwatering which can cause root rot.
Apply organic mulch such as wood chips or straw around the base of each plant:
– Conserves soil moisture
– Reduces weed competition
– Moderates soil temperature
Annual pruning helps maintain shrub health and productivity by:
– Removing dead, diseased, or crossing branches
– Opening canopy for better light penetration
– Encouraging new growth that produces nuts
Prune during late winter dormancy before bud swell.
Apply fertilizers based on annual growth observations:
– Use balanced fertilizers in early spring if needed.
– Avoid excess nitrogen late in the season which weakens woody tissue before winter.
Hazelnuts can be susceptible to several pests and diseases common in Massachusetts:
Regular scouting, maintaining good hygiene by removing fallen leaves and debris, helps minimize problems.
Hazelnuts mature late summer through early fall when husks turn brownish and begin to open. Nuts naturally drop when ripe – collect frequently from the ground or shake shrubs gently.
Hand-harvesting is common due to shrub size. Mechanical methods are less practical in small-scale settings but may be available for larger operations.
Post-harvest steps include:
– Drying nuts at 95°F until moisture content drops below 8% to prevent mold.
– Shelling can be done manually or with mechanical shellers where available.
Properly dried nuts store well at cool temperatures for several months.
Growing hazelnuts successfully in Massachusetts requires thoughtful attention to variety selection, soil preparation, site choice, pollination needs, maintenance practices, pest control, and harvesting techniques. While challenges exist due to climate variability and potential diseases like filbert blight, adopting appropriate strategies tailored to local conditions can lead to productive hazelnut crops. With patience and consistent care, Massachusetts gardeners can enjoy fresh homegrown hazelnuts that enhance both their culinary creations and landscape diversity.