[BARNACLE BILL]

I have been away recently when I returned the peas were ready for picking. But about 15 % the pods had starred to turn yellow. So I thought I would use them as next years seed. Do I pick them and let them dry out in the greenhouse. Or do I leave  them on the plant to dry out.
 
Thanks BB

[New shoot]

Leave them on the plants until the pods turn dry.  The peas inside will be hardening into seed when the pods are yellow, but won't be fully ready.

[BARNACLE BILL]

Thank you BB

[sunshineband]

 I find that if I leave them on the plant to dry, mice help themselves to the seeds, si I cut the haulm complete with partially dry pods and hang them up in the garage to dry off, or leave the pods on a plate lined with kitchen paper.

[AnneB]

I do the same as Sunshine.  If I left them to mature on the plant, most would be gone.

[New shoot]

My site is well patrolled by neighbouring cats, so we don't seem to get many mice problems. 

I can sow peas and beans direct and not get them eaten, whereas I know Sunny has no end of problems on her site with voles and mice.  I guess that's the test - if you can sow direct, the maturing seed will be usually be OK, if not, harvest early.

I have ever hungry muntjac to contend with instead