Crop Matrix Tool
Use this tool to find out about characteristics; such as soil pH, cultivation methods, pests and post harvest treatment; for a specific crop. To load a crop's characteristics choose a crop from the drop-down menu. To see a list of all possible crops grouped by category click on the “Show List of All Available Crops” link next to the drop-down menu.
Japanese, Siebold |
| General |
| Common Name | Japanese, Siebold |
| Latin Name | Juglans ailantifolia |
| Category | Nuts |
| Family | Walnut |
| Variety | |
| Visual Traits |
| Flower | monoecious, self-fertile, June |
| No Citation Available |
| Fruit / Nut | oval-shaped; thinner shell than North American walnuts; cracks poorly |
| No Citation Available |
| Height | 20m |
| No Citation Available |
| Spread | 15m |
| No Citation Available |
| Cultivation |
| Pollination | wind pollinated |
| No Citation Available |
| Propagation method | seed, container |
| No Citation Available |
| Pruning | late summer to fall, during dormancy |
| No Citation Available |
| Seed treatment and storage | cold-stratification required, must protect from rodents if direct seeded or sown in cold frame (fall) |
| 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 |
| Moisture and drainage | requires well-drained, moist |
| No Citation Available |
| pH | alkaline |
| No Citation Available |
| Soils and topography | moist woodlands |
| No Citation Available |
| Texture | loam |
| No Citation Available |
| Growth Pattern |
| Root habit | deep taproot |
| No Citation Available |
| Seed-bearing age /max production | bear 3-4y from seed |
| No Citation Available |
| Habitat and Climate |
| Hardiness Zone | to zone 4, hardier than J. ailantifolia var. cordiformis |
| No Citation Available |
| Native Range | Japan |
| No Citation Available |
| Wind / ice / frost susceptibility | susceptible to frost damage, needs wind shelter |
| No Citation Available |
| Light |
| Shade tolerance | intolerant; canopy species |
| No Citation Available |
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