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.
