I'm working on something VERY similar, but focused on a particular country, so I'm in the weeds (hah) on this and here's my feedback:
* I absolutely do not trust the data provenance here, and reading through all your links doubly so. You cannot trust claude to do analysis. Not only does it misattribute often, but fake sources and poor interpretations seep in. Without url sources tied to each claim it's inevitable that it rots. You'll have no way to keep track of claims across plants, and over time things slip.
I did see your data structs in github, but a lot of it is just LLM summaries of what it read. This isn't bad (and at some point necessary), but Claude in particularly is notorious on tasks like this, that don't pass human evaluations.
HOWEVER, that said, it's probably okay because it's not a life or death subject. Claims like "full sun" aren't very usable as is, and these can just serve as pointers for people to go research plants on their own.
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Excited to see where you get to!