Thank you for your comments. There was no more stem in the image that I hid by cropping. There was a dark blotch in the very lower left corner that was removed by cropping and there was one extra small piece of green stem in the lower right corner that really distracted so I cloned it out as well. I did not know all of that Asher, about their reproductive ability, but it certainly makes sense and explains why it is so difficult to get rid of them. If it were up to me I would not bother.
The dead, spent seed head's stem was for sure a little bit in front of the other one but the front portion of the white seed head, because it was so big and round, protruded outwards towards the camera enough to where it was in the same portion of the focus plane as part of the dead one.
Alas, I cannot at this time try a reshoot. The poor things are now gone due to my digging, turning, weeding, and placement of fresh, new mulch. Don't worry though. I am such a reluctant gardener that it should not be too long before I have more to choose from and shoot.
James Newman