Scarification: Soak in water, let stand in water for 24 hours
Stratification: cold stratify for 30 days
Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed
Other: can be fall sown without stratification.
Introducing the Phellodendron lavallei, commonly known as Lavalle Cork Tree. Native to central Japan, this deciduous tree boasts more upright branching than its similar counterpart, the P. amurense. The thick and corky bark of the Lavalle Cork Tree can even be harvested as a source of cork. Growing up to 10 meters tall and not frost tender, this tree prefers well-drained soils that vary from light (sandy), medium (loamy), and heavy (clay) and can tolerate a range of soil acidity levels from acidic to basic. It cannot grow in the shade and requires moist soil but shines in full sunlight. The Lavalle Cork Tree is in flower from June to July, producing male or female flowers that must be grown together for seed production. Visit our website for more information on this unique and beautiful tree – plants.usda.gov.