Seed germination, sowing instructions for Bladder nut. Staphylea pinnata is easy to grow from seeds. Hardy shrub growing to 4 m. Can grow in semi-shade or full sun. It requires moist soil. Seeds can be very slow to germinate (maybe one year). This plant is a cold-germinator. The sowing must be kept cold for a period of some weeks (refrigerator) or you sow them in very early spring or autumn.
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