Heartnut Tree Seeds - Juglans ailantifolia var. cordiformis

Heartnut Tree (Juglans ailantifolia var. cordiformis), a variety of the Japanese walnut, is an elegant, fast-growing deciduous tree known for its distinctive heart-shaped nuts with a sweet, mild flavor. Highly ornamental and productive, this tree combines beauty with utility, making it a top choice for edible landscaping and small-scale nut production.

The Non-GMO Heartnut Tree yields attractive nuts that are easy to crack and rich in healthy fats and proteins. Its broad, tropical-looking foliage and symmetrical shape make it equally valued as a shade or specimen tree. Adaptable and resilient, it thrives in temperate climates and supports biodiversity by attracting wildlife.

Features

• Produces heart-shaped, sweet, edible nuts
• Non-GMO and hardy Japanese walnut variety
• Attractive foliage and ornamental form
• Fast-growing and early-bearing (often within 5–7 years)
• Ideal for edible landscapes and small orchards
• Provides nuts for people and wildlife alike

Specifications

• Scientific Name: Juglans ailantifolia var. cordiformis
• Common Name: Heartnut / Japanese Heartnut
• Plant Type: Deciduous nut tree
• Growth Height: 30–60 feet
• Spread: 30–50 feet
• USDA Hardiness Zones: 5–8
• Sunlight: Full sun
• Soil Type: Deep, well-drained loam or sandy soil; pH 6.0–7.5
• Bloom Season: Late spring
• Nut Season: Late summer to fall (September–October)
• Flower Color: Yellowish-green catkins
• Nut Color: Brown, heart-shaped shell
• Foliage: Large, tropical-looking pinnate leaves
• GMO Status: Non-GMO
• Planting Season: Spring or fall
• Sowing Depth: 1–2 inches
• Germination Time: 60–120 days (cold stratification for 90–120 days recommended)
• Watering Needs: Moderate; prefers moist but well-drained soils
• Maintenance: Minimal pruning; avoid disturbing taproot when transplanting
• Pollination: Cross-pollination recommended for best nut yield (plant 2+ trees)
• Wildlife Benefits: Provides nuts for squirrels, birds, and deer
• Uses: Edible landscaping, nut production, shade tree, reforestation

Planting Guide

• Cold Stratify: Store seeds in moist sand or peat for 90–120 days at 34–40°F before planting.
• Prepare Soil: Choose a deep, fertile, well-drained site with full sun exposure.
• Sow Seeds: Plant 1–2 inches deep and water thoroughly.
• Light: Ensure full sun for strong trunk development and nut yield.
• Watering: Keep soil moist during germination; reduce after establishment.
• Spacing: 30–40 feet apart for orchard planting.
• Care: Mulch around the base to retain moisture and prevent weeds; prune lightly in winter.