Japanese Pagoda Tree Seeds - Styphnolobium japonicum
(former species Sophora japonica)
Height: 35 - 50 ft Max Diameter: 35 - 50 ft Hardiness: -25 degrees Fahrenheit USDA Zone: 4-8 Light: Full Sun / Partial Shade
Edible fruit, flowers, bark, leaves for food, and tea used to make strong springy "enju wood".
Flowers used to make dye
Trunks are used for timber
Seeds are made into an oil
1. Soak seeds in hot (but NOT boiling) water for about 12 hours.
2. Seeds that have been successfully pretreated will swell to 3x their original size. Sow the swollen seeds 1/4" deep in sterile seed-starting soil. Repeat hot water treatment with the same seeds up to 3 more times, immediately sowing seeds as they swell.
3. Place seedling trays in a well-lit location, away from hot, direct sunlight.
4. Germination will occur in about 10-14 days after pretreatment. Some seeds will sprout all at once; others may take longer to break dormancy. Be patient and do not discard your seeds prematurely! :)
5. Transplant seedlings to their permanent location when they have their 2nd set of leaves, and after all chance of frost has passed.