Add a resource to the Pale Garden that's only harvestable at night

Right now, the only unique resources that the pale garden offers are its wood, moss and hearts which can be harvested during daytime, which completely avoids the creaking. Incentivize players to enter at night by adding a unique plant like some kind of bush that only grows fruit or some other resource that only appears at night, inside of the biome. Maybe the creaking hearts leak sap at night which can be bottled and used to create some kind of potion, like one that gives you resistance but with mining fatigue, similar to the potion of turtle master.

I especially like my creaking heart idea, since it desensitizes players from ridding the pale garden of all threat and keeps the creaking around. Creaking hearts placed outside of the biome should be unable to leak sap at night.