Juglans nigra
TAXONOMY
FamilyJuglandaceae
GenusJuglans
Zone4
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Juglans nigra, commonly known as Black Walnut, is a large deciduous tree native to eastern North America. It is known for its high-quality wood and edible nuts. The tree can grow up to 30-40 meters tall and has a broad, rounded crown. It has a dormancy period during the winter months.
ALSO KNOWN AS
Black Walnut
Juglans nigra f. nigra
Juglans pitteursii
Wallia nigra
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity60%
Dormancy4 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Black Walnut trees prefer full sun and moderate temperatures. They require well-drained soil and should be watered regularly, especially during dry periods. The tree thrives in temperate climates and benefits from moderate humidity levels.Soil
Black Walnut trees prefer loamy soil that is well-drained. The soil should be rich in organic matter and have a slightly acidic to neutral pH. Good drainage is essential to prevent root rot.Fertilizer
Fertilize Black Walnut trees with a balanced fertilizer, such as 10-10-10, in early spring. Apply the fertilizer around the drip line of the tree and water it in well. Avoid over-fertilizing, as this can harm the tree.Repotting
Black Walnut trees are not typically repotted as they are large, outdoor trees. Instead, ensure they are planted in a suitable location with enough space for their extensive root system to grow.Propagation
Black Walnut trees can be propagated from seeds or by grafting. Seeds should be collected in the fall, stratified over winter, and planted in the spring. Grafting is typically done in late winter or early spring.Pruning
Prune Black Walnut trees during the dormant season to remove dead or diseased branches and to shape the tree. Pruning helps improve air circulation and light penetration, which can reduce the risk of disease.Toxicity
Black Walnut trees produce a chemical called juglone, which is toxic to many plants and can inhibit their growth. The nuts, leaves, and roots contain juglone. While not highly toxic to humans or pets, it can cause mild gastrointestinal upset if ingested.Additional
Black Walnut trees are known for their allelopathic properties, meaning they release chemicals that can inhibit the growth of other plants nearby. This should be considered when planting near gardens or other trees.REVOLUTIONIZE YOUR PLANT CARE
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