Overview
The Black Sleep Lily is the rarest flower in Starsand Island and the only black flower variant in the entire game. Sleep Lilies are wild flowers found in the Moonlit Forest (specifically the Mural Valley area). The Black variant can only be obtained through cross-breeding Sleep Lilies on your farm.
How to Obtain
Step 1: Explore the Mural Valley zone of the Moonlit Forest and collect Sleep Lily flowers
Step 2: Replant the collected Sleep Lilies on your farm in standard farmland
Step 3: Set up a cross-breeding arrangement: two Sleep Lilies with one empty tilled plot between them
Step 4: Water all three tiles daily and wait. The Black variant has a very low spawn chance
Tips
The Black Sleep Lily has the lowest cross-breeding probability of any flower. Expect many attempts before success.
Set up multiple breeding pairs simultaneously to increase your chances per harvest cycle.
Use sprinklers to ensure consistent watering of all breeding tiles.
Black Sleep Lilies are highly valuable for selling and for completing the Islandpedia flower collection.