Heartnut |
General |
Common Name | Heartnut |
Latin Name | Juglans ailantifolia |
Category | Nuts |
Family | Walnut |
Variety | var. cordiformus |
Visual Traits |
Flower | monoecious, self-fertile, June |
No Citation Available |
Fruit / Nut | heart-shaped; thinner shell than North American walnuts; |
No Citation Available |
Height | 20m |
No Citation Available |
Spread | 15m |
No Citation Available |
Cultivation |
Pollination | wind pollinated |
No Citation Available |
Propagation method | grafted seedlings; offspring of seeds do not produce true to heartnut shape |
No Citation Available |
Pruning | late summer to fall, during dormancy |
No Citation Available |
Seedling treatment | intolerant to root disturbance, plant in permanent location early, protect when young |
No Citation Available |
Critters |
Pathogens | Walnut bunch disease |
No Citation Available |
Soils |
Fertility / quality | fertile |
No Citation Available |
Moisture and drainage | well-drained, moist |
No Citation Available |
pH | 6.0-7.0 |
No Citation Available |
Texture | sand and clay loam |
No Citation Available |
Growth Pattern |
Growth rate | medium |
No Citation Available |
Longevity | long |
No Citation Available |
Root habit | deep taproot |
No Citation Available |
Seed-bearing age /max production | 1-3y / 6-8y (grafted trees) |
No Citation Available |
Habitat and Climate |
Hardiness Zone | 6-7, not recommened in regions colder than zone 6 |
No Citation Available |
Native Range | only cultivated (originally in Japan and China) |
No Citation Available |
Wind / ice / frost susceptibility | terminal buds susceptible to late frost |
No Citation Available |