Other attributes: toxicity (when eaten or even touched), deer resistance, allelopathic potential, pollinator friendliness.
Assuming a USA buyer, you'd have to ask for their zip code, then match that to the plants, many of which would probably have to be individually coded & entered (the zip codes they are native to), a map blur across the US which would vary for each species.
The binary qualities (toxic/nontoxic) on the other hand seem easy to add.
For invasiveness: that may be a reason why not too many "Amazon for plants" websites exist. But a simple binary "flagged as invasive", like a red dot on its product page, would be a terrific addition.
Agreed!
In terms of difficulty:benefit, a binary invasive flag would get most of the way there. E.g. English Ivy, Bradford Pears, Mexican Petunia, creeping bamboo.
Buuuuut... this looks like it's mostly for house plants, for which invasiveness is less of a concern.
However, I think it should mostly generalize to outdoor plants as well.
At least in the US, you could simply add USDA hardiness zone [0], which roughly indicates the boundaries a cultivar can survive winter (freezing) and summer (heat), and is almost always listed.
I'd be shocked if there wasn't a zipcode-to-USDAH converter out there.
[0] https://en.m.wikipedia.org/wiki/Hardiness_zone#United_States...
I like the focus on what your target user actually wants (that isn't addressed by existing solutions).