- Description: The heartnut tree is a variant of the Japanese walnut, known for its heart-shaped nuts. It is a medium-sized deciduous tree, growing up to 15 meters tall with compound leaves that have 11-19 leaflets. The nuts are encased in a green husk that splits open when mature, revealing a smooth, thin shell that is easier to crack than other walnut species. The kernels have a mild, sweet flavor and are used similarly to other walnuts in baking and cooking.
- Companions: Clover, comfrey, marigold, tansy.
- Preparation: Select a site with well-drained, fertile soil. Add organic matter if needed.
- Planting: Space trees 10-15 meters apart. Plant in early spring or autumn.
- Pruning: Prune in late winter to maintain shape and remove any dead wood.
- Other Suggestions: Ensure good drainage to prevent root rot. Protect from late frosts.
- Juglans ailantifolia var. cordiformis (Heartnut): Usually begins producing nuts in about 4-7 years. The heartnut is a variety of Japanese walnut known for its heart-shaped nuts that are easier to crack and have a mild flavor.