Sunflowers are introduced to players at level 13. Here is the list of all discovered species, but more are supposed to exist - see this page for a list of rumored sunflower hybrids.

SPOILER ALERT: click "show" to view the image of the plant; if you don't want image spoilers avoid clicking this button or entering the plant page.

Pure-bred Sunflowers Edit

Cross-bred Sunflowers Edit