Only one branch was sprayed, so any silver would be on or in the plant material for that lone branch which is already in the compost bin… Other branches though are fine to consume as they don’t have silver on or in them, unless one was careless in how they sprayed causing over spray to land on other plant material, so that which i took precautions for when spraying and also consider i make either rosin or alcohol extracted resin from most all the bud so potential silver carry over is essentially nothing.
As for enough time for seeds to finish out… possibly if i leave it long enough and it keeps going, but by that point the rest of the plant will be long since harvested as only the seeded branch will remain till viable seeds are produced, assuming i keep the plant around till then as im on the fence as to whether i want to continue on with working this cross.