I've been thinking about this for the obvious reasons - she's showing few signs of flagging, but the signs are there. When she goes, I'll get off lightly because my sibs elected me to deliver the address at my father's funeral. He was an arsehole with a handful of better qualities; we all sat round and discussed how terrified we'd been of him, then added a few good bits and I wrote my speech. It was not a eulogy.
When Mum goes, one of the others will have that questionable honour! But she's a bundle of tricks; there won't be the same negative consensus. So I've thought of my contribution. Here it is:
"A gifted and creative gardener, she always said she thought of plants as her children. As one of her human children, I can attest that she did."