I may be dreaming, but I thought we had a discussion last year about this, but can't for the life of me find it... advance apologies if this is a 'rerun' - I have lots of those these days!
When adding a plant to My List, it would be nice to be able to add a personal comment at the initial 'add a plant' screen. I thought this got added either below the have/want option or at the very top, but I don't see it anywhere (and may be imagining this). I'm just now starting my spring buying/exchanging plant frenzy so if this is hidden somewhere, that would sure save me some time. I use the personal comment section to note where I site the plant, the year it was added, the source, and sometimes notes about care or use.