Walnut Fruit

Juglans regia

fruit

English walnut trees produce large, round nuts with hard shells containing nutrient-rich kernels. These tall, deciduous shade trees secrete juglone, a compound that inhibits growth of many nearby plants. Walnuts require a long growing season and are productive in regions with warm, frost-free springs.

Common Problems

Select the problem your Walnut Fruit is experiencing to get a treatment guide.

warning

Slow Growthchevron_right

warning

Brown Spotschevron_right

warning

Dropping Leaveschevron_right

warning

Underwateringchevron_right

Care Guide

light_mode

Light

Full sun; requires 6–8 hours of direct sunlight daily for optimal nut production

water_drop

Water

Moderate; water regularly during establishment and growing season. Mature trees are drought-tolerant; reduce watering in winter

compost

Soil

Deep, well-draining loam or silt loam; pH 6.0–7.5. Needs room for deep root development

science

Fertiliser

Light feeding in early spring with balanced fertilizer. Excessive nitrogen reduces nut quality and shell thickness

thermometer

Temperature

Prefers warm, long growing seasons. Frost-sensitive during spring; late frosts damage flowers and developing fruit

humidity_percentage

Humidity

Moderate; prefers slightly moist but well-drained conditions. High humidity increases fungal disease risk

Toxicity

check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children

Walnut kernels are edible and non-toxic. However, the hull stains skin and clothes; juglone in leaves and roots can be toxic to sensitive plants nearby

Common Diseases

coronavirusLeaf Spotchevron_right coronavirusCankerchevron_right coronavirusAnthracnosechevron_right

Common Pests

pest_controlAphidschevron_right pest_controlScalechevron_right pest_controlCodling Mothchevron_right pest_controlSawflychevron_right

Seasonal Care

local_floristspring

Resume regular watering and feeding as growth picks up.

light_modesummer

Peak growing season. Water and feed regularly.

ecoautumn

Reduce watering as growth slows. Stop heavy feeding.

ac_unitwinter

Minimal watering and feeding. Protect from frost if needed.