Around 40 species, individual needs
The official FAQ puts the base game at around 40 plant species. The game’s growing systems mean that plant choice and environmental conditions belong together; a name alone is not enough to predict a plant’s needs.
Build your collection from verified information
Use the in-game plant information to record the plants available in your save and the conditions they state. This is more reliable than importing an unsourced spreadsheet, especially while the game is new and updates may change details.
What the public record supports
It is safe to say that Tiny Eden has a broad mix of plants and that growing involves light, temperature and soil. Names, growth stages, yields, seasonal behavior and exact care requirements should be marked unverified until documented from the game or an official source.