I have a suggestion that, I also have visual impairment and I'm not much of a green thumb but I've tried something I would suggest if she lives on her own if that isn't she has to space can a planter box and get some plants that or touchable by that I actually mean they have some that are sensory plants I'm not sure what the term for exactly but things like Lambs Ear and things like that, another suggestion I have if you don't think she's able to handle gardening as much anymore Maybe oh, maybe you should think about signing her up to be your partner baby vocal gardening club of some sort something. Also, one other suggestion I do happen to have you should make me donate to your local or public Green Space in her name that might be nice then she'll do that the garden is being taken care of and she might enjoy that.