Here is a nearly done pea variety; if I have only a few seeds to start with I'll often grow in these planters for more cultural control. I've been keeping them near my (covered ) carport because there has been some extended periods of rain and I can pull them under there as often as needed and easily. The rains will damage any seed in pods which have opened even slightly. However, it also is right at the front of my house, so anyone who comes over sees these dying planters right off.
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I probably have a somewhat twisted sense of humour, as I get such a hoot out of watching people's reactions to these planters. I can practically feel them thinking, '....my goodness, she hasn't a clue how to grow anything, her plants are all dead and she hasn't noticed...'. The looks of horror on their faces; the less reserved will immediately look to me with hope to communicate my mistake with eye language. At this point I usually cannot hold back the laughter, nor the need to explain to them why I'm keeping 'dead plants'. I find it all pretty hilarious, and many a joke has been made by visitors about my ineptitude on full display.
But in another way, it's all an interesting cultural revelation. At some point in times past I don't think the presence of my degrading plants would have been cause for such confusion. People saved seeds, it was just part of the whole process in a gardening cycle. You have to wait 'til the plant is done. Likely nearly everyone who grew plants did it. Now, it seems a cause for confusion and bafflement. Not that I enjoy the look of the plants at this stage either, but it is what it is and I want the seeds. Interesting how the wheel of life rotates.