I’m not sure if an inoculant would help the seed to sprout; it’s my guess that it is more to help the plant once it forms roots (which is where the nitrogen-fixing bacteria make their home). However, soaking and warmth often can encourage older seeds that are still viable to sprout. You might try soaking the seeds overnight in warm (not hot) water, and then planting in warm soil. Beans especially like soil temps around 80 to 85F. Peas like soil temps around 75F. Good luck!
I’m not sure if an inoculant would help the seed to sprout; it’s my guess that it is more to help the plant once it forms roots (which is where the nitrogen-fixing bacteria make their home). However, soaking and warmth often can encourage older seeds that are still viable to sprout. You might try soaking the seeds overnight in warm (not hot) water, and then planting in warm soil. Beans especially like soil temps around 80 to 85F. Peas like soil temps around 75F. Good luck!