Lush Groves

In the caves, the lush caves really adds a spark of life to the caves that really lightens up the place. The snapshot shows that this currently only spruces up existing caves, not being its own thing. My thought was that there could additionally be a specific biome within the underground caverns that intentionally is designed for the lush biome, and would have more light, thicker plant growth, and an imposing presence that makes players want to explore it. Perhaps thickening the glowberry growth patterns and lengthening them to create thick brush you have to cut your way through to see where you're going, leaving trails(like scything your way through a wheat field in real life, except upside down and with a high ceiling) that remain for a while to show where you've been, but may regenerate by the time you return to offer a repeat experience. Perhaps there could be a variant of the spore blossom(or it could do this as well) that would make the lush ceiling spread into certain kinds of stone, and accelerate the growth of glowberry vines. Maybe it could even have a chance of randomly spawning a new glowberry vine in an area around it, to make areas that may be originally easily navigable turn into dense vegetation you'll need to hack your way through the next time you visit. I guess there would also need to be some immovable reason to want to revisit for this to be a worthwhile addition, like possibly a tree variety that only grows in this biome or maybe a certain, golden mob.