hmmm, I had some beloved geraniums that I took cuttings from, and the tips fell over same as your peas. I just happened to pick up one of the fallen tips, and there rolled up in a tiny piece of leaf was.....a worm. Next time you have something drop, take it and very gently examine the leaf. Once I found out what it was, I used Sevin dust, but of course my plants are not meant to be eaten, and they are in pots.

Producing seeds uses a lot of the plant's energy. This is one of the reasons you might not get mature seeds from cut flowers. The plant needs to be able to gather food while it is developing seeds, and the seedpod needs to remain attached to the parent plant until the seeds are fully developed. Don't want to start anything because people set their own standards for flower picking and seed gathering activities in places that are not their own; but municipal plantings, parks, arboretums, greenhouses, garden centers, other people's yards, etc. etc. shouldn't be regarded as a free for all. :-)

That is what the damage looks like. I have not seen the moth itself, but the description sounds like our common lawn moth. I think I will find some spun clothe to put over the peas to keep moths out.

the wild ones that are perinial are called everlasting peas. i just found that out. i bought a plant a few yrs ago and collected seeds last yr. i started an egg carton full of seeds this yr and they did grow but took quite a while to sprout. they are different than other types of sweat peas. anyway i gave all the sprouts away but my plant didnt come back this year. i have a few volunteers(sp) in the garden this yr though. plus they are not hard to find here in mi. they grow along the sides of the road. it scared me when i tried to pluck a ripe pod,lol. there was a loud pop and seeds went flying everywhere. so you have to pick them slightly immature if you want to save them.