Physocarpus amurensis seeds were studied to find ways to make them sprout faster. Soaking the seeds in water didn't work well, but using a mix of chemicals improved germination rates. The best results came from treating the seeds with a mix of GA3 and KNO3 for 72 hours, which made 90% of the seeds sprout. Keeping the seeds in low temperatures for 28 days also helped them sprout better.