The Blue Cascade Flower is a plant from the Liorassya Forest that have been brought by the first traveler to the place.  

Farmers had many problems cultivating the plant because it is born in a place where time flows differently and bringing it in the normal world it means the plant needs water more frequently since time flows faster, but most important is the level of light. In the Liorassya Forest the time is stuck at what can be considered a twilight, so a sunny day is a killer for the Blue Cascade, when the night will also make its growth slow and eventually making it die. 

The usage of the plant is only applied by alchemists who have followed a special lesson in the Guild of Alchemy in Lorejan City to make a special potion called Poliexa