Germinating Psoralea pinnata seeds is a relatively straightforward process. Scarify the seeds by lightly scratching or sanding their hard outer shells to improve germination rates. Soak the scarified seeds in warm water for 24 hours to soften them. Next, plant the seeds in a well-draining seed-starting mix, typically a combination of peat moss and sand. Sow the seeds at a shallow depth, about 1/4 inch, and cover them lightly with the mix. Water the soil lightly to ensure it's consistently moist, but avoid overwatering. Place the container or tray in a warm, bright location with indirect sunlight. Psoralea pinnata seeds generally germinate within a few weeks to a few months. Once the seedlings are large enough to handle, you can transplant them into individual pots or directly into the garden, where they will grow into hardy beach peas, thriving in coastal conditions.
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