Scarification: Soak in water, let stand in water for 24 hours
Stratification: none required
Germination: can be sown in fall or spring, sow seed 1" deep, tamp the soil, mulch the seed bed, keep moist
Other: Does not require stratification. However, a brief cold period seems to induce germination.
Looking for a unique and native Californian tree to add to your garden or landscape? Consider Juglans californica, also known as the California black walnut, California walnut, or Southern California walnut. This large shrub or small tree, growing up to 30 feet tall, is endemic to California and is often found in mixed woodlands, valleys and slopes. Its large pinnately compound leaves and thick bark make for an eye-catching addition to any garden, and it is often cultivated for its ornamental value. Additionally, it is used in the walnut industry as a rootstock, and the nuts are occasionally eaten by the Chumash Indians of the Channel Islands of California and Ventura County. With its unique properties, Juglans californica is an excellent choice for anyone looking for a distinctive and beautiful tree to add to their California landscape.