The Blooming Caverns is a biome from the Deeper and Darker mod, and it’s the cold, wet part of the Otherside, which is the dimension you’ll get to through the portal in an Ancient City. It’s the brightest biome down there, with glowing plants on the floor and ceiling, teal 
Blooming Sculk Stone underfoot and pools of water that you won’t see anywhere else in the dimension.
Those pools are where the Angler Fish live, and Sludge will bounce around the shore near them, so it’s a lot busier than it looks at first. It’s also where you’re able to gather 
Bloom Berries, 
Ice Lilies and 
Blooming Stems, and since the stems are the only way to get Bloom wood, it’s worth a visit even if you don’t plan on staying.
Finding It
The Blooming Caverns is the cold and wet one of the four biomes in the Otherside, and with its teal floor and soft glow, it’s easy enough to tell apart from the dark Deeplands. Like the rest of the dimension, it’s all inside one big cavern between a Bedrock floor and roof, so you’ll find it at whatever height the ground happens to be.
If cheats are on, the command above will point you to the closest one. Otherwise, look for the pale glow of Glowing Roots and berries in the distance, as nothing else in the Otherside gives off light quite so close to the ground.
Terrain
The floor is made of Blooming Sculk Stone, which will drop 
Cobbled Sculk Stone unless you mine it with Silk Touch, and under that it’s the usual Sculk Stone. You’ll see patches of 
Blooming Moss Block spread across it as well, and tall Blooming Stems climb up out of the ground, bending off to the side every so often as they grow.
Glowing Roots grow up from the floor in large numbers, Glowing Vines hang down from the roof, and you’ll find Glowing Grass and Glowing Flowers on the Blooming Sculk Stone. Each of them is covered on the Otherside plants page, along with what you’re able to do with them.
Water Pools
The pools are the main thing that sets this biome apart, as they’re the only open water you’ll find out in the Otherside’s caverns. They’re small and irregular, a few blocks deep, with a rim of Blooming Sculk Stone around the edge and the odd tuft of waterlogged Glowing Grass on the bottom.
Ice Lilies
Ice Lilies float on the surface of some pools, and about half of them carry a 
Lily Flower you’re able to shear off without breaking the pad. A boat will break any Ice Lily it runs into, so it’s better to walk around the edge than sail across if you’re after the flowers.
Since the pools are the only water down here, they’re worth remembering if you need to fill a 
Water Bucket, or if you’d like to grow anything that needs water. A pool only forms where the ground around it is all Blooming Caverns as well, so you’ll find them in the middle of the biome rather than at its edges.
Mobs
Three mobs spawn in the Blooming Caverns, and two of them are found nowhere else. The Angler Fish live in the pools in groups of three to five, while Sludge spawn on dry land along with the odd Sculk Snapper.
| Mob | Where | Group Size | How Common |
|---|---|---|---|
| Angler Fish | Water pools | 3 to 5 | Common |
| Sludge | Dry ground | 1 to 2 | Common |
| Sculk Snapper | Dry ground | 1 to 2 | Rare |
It’s worth checking the floor here too, as 
Infested Sculk and the 
Sculk Jaw both generate in this biome. The glowing plants make them a little easier to spot than in the Deeplands, but it’s still a good idea to walk carefully across any patch of plain Sculk.
Resources
Bloom Berries grow on some of the Glowing Vines, and you’ll be able to pick them by using the vine. Each one restores a little hunger and usually makes you glow for a few seconds, and they’re also how you plant new Glowing Vines, by placing a berry on the underside of a block.
Blooming Stems are the Otherside’s other kind of wood, as they craft into 
Bloom Planks for the full Bloom wood set. A stem you place on Blooming Sculk Stone will keep growing upward and branching out, and the Echo and Bloom wood page has the details.
4All of the Overworld ores generate in the Sculk Stone walls as well, so it’s worth mining a little while you’re gathering plants. The Diamond and Emerald Ore here are the same Sculk Stone versions you’ll find in the Deeplands, and they drop the normal items.
FAQ
The Blooming Caverns is one of the four biomes in the Otherside, which you’ll get to through the portal in an Ancient City. You’ll know you’re there when the floor turns teal and there’s glowing plants and pools of water all around you, and if cheats are on, /locate biome deeperdarker:blooming_caverns will take you to the closest one.
Angler Fish spawn in the water pools in groups of three to five, and Sludge spawn on the dry ground, which are the only two mobs that are unique to this biome. The odd Sculk Snapper turns up as well, though they’re a lot rarer here than in the Deeplands.
Bloom Berries grow on the Glowing Vines that hang from the roof of the Blooming Caverns, and you can pick them by using a vine that has berries on it. Using Bone Meal on a bare section of vine will grow a new berry there, which makes them easy to farm once you’ve planted a few.
