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How to Grow Black Walnut Trees from Seed!

Walnut trees most abundantly along stream banks, along watercourses, in bottomlands, open fields and along the edges of forests. The Black Walnut Trees prefer full sun and deep, moist, rich, well-drained soil. They will grow in soil containing clay or rock, but much slower than seeds planting in unobstructed soil. Additionally, the walnut trees prefer soil with a pH of 6.0 to 6.5.


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How to Grow Black Walnut Seeds!


# 1 | Seed requires 90 to 120 days cold moist stratification. Stratify walnut seeds by placing them in a moist mixture of sand and peat moss and then storing them in a cool location. You can store them in the refrigerator in plastic containers or food storage bags.


#2 | After cold stratification, the best time to plant tree and shrub seeds outdoors is after the last frost in your area (spring). In the Northern states – the best time to plant seeds outdoors is from May to June. Alternatively, if you receive your seeds in the fall, you should plant your seeds outdoors before the ground freezes in your area (late September to early November) and this will naturally stratify the seeds.


#3 | Place your seeds 1 inch to 1 ½ inches below the soil surface. Gently water your seeds to keep moist, not soaking wet. Heat & humidity is critical for germination. Germination may occur in 1 week or as long as 3 months



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