Blocks
Ivy has a chance to generate on tree trunks in forests. What biomes Ivy occurs in is configurable using datapacks.
Giant spruce trees with Ivy growing up the trunks
Moss can be applied to items using the Moss Clump items. For blocks that have a mossy state, this will convert them; otherwise it will form a mossy overlay on the surface much like Glow Lichen. Both this new surface moss and the moss from mossy block variations can be re-collected using Shears, yielding a Moss Clump item. Moss placed this way as well as moss that forms as a result of contact with water can spread over time.
A Lush Cave biome showing naturally generated patches of surface moss
Stone and brick blocks, slabs, and walls now have mossy variations, which can spread to nearby blocks.
Leaf Piles form over time and fall when Leaves blocks decay. Rates for both are configurable. Leaf Piles can also be crafted using three of their respective Leaves blocks in a row and Azalea Flower Piles from Azalea Flowers by crafting three in a row.
Leaf Piles on the ground create a Slowing effect for players but can be broken instantly by hand, which will occasionally drop Sticks or, in the case of Flowering Azalea Leaf Piles, Azalea Flowers. Leaf Piles can also be collected in survival mode by using Shears or Silk Touch.
Leaf Piles are transparent - much like Leaves blocks - until stacked up to 5 high, then become visually opaque. Visually opaque Leaf Pile blocks do not become solid blocks for Redstone purposes, even when stacked to a full block. When a Leaf Pile is stacked 8 high (taking up a full block) using Shears on it will allow you to collect a regular Leaves block instead. Leaf Piles will fall when the block underneath them is broken, and stack onto Leaf Piles of the same type.
Podzol will slowly form underneath tall piles of spruce leaves and Humus under tall piles of deciduous leaves.
Crafting 6 Oak Leaf Piles from Oak Leaves blocks
Jungle Leaf Piles stacked to various sizes on a backdrop of Sand
Mangrove Leaf Piles forming under Mangrove Leaves in a Mangrove Swamp biome
Mulch is a fertile block on which you can plant crops (including many modded crops and Sugar Cane when soaked) without the need to till it. Crops planted on mulch will never grow weeds.
Mulch can be soaked by hand via a Water Bucket, by the rain, by being directly next to Water, or by being placed in a humid biome like Jungles or Swamps. Mulch will not remain soaked if you break it. When soaked, Mulch will increase the growth speed of any crops placed on it, except Beetroots.
Crafting Recipe, using Dirt, 2x Bark, Bone Meal, Ash, and a Moss Clump
Nulch is the nether version of Mulch. It grows Nether Wart and can be filled with Lava, at which point it will hurt to walk on and emit light.
Crafting Recipe, using Netherrack, 2x Warped or Crimson Bark, Magma Cream, Ash, and Nether Wart
Weeds are a new plant which can be found in the wild and will grow in untended gardens. They have 7 growth stages. When fully grown, Weeds make pretty dandelion particles in the wind and can be harvested to obtain Dandelions. Villagers will not take damage from Weeds.
Weeds in the wild
Rooted Grass Blocks have a chance to form beneath Saplings within their appropriate biomes (for example Jungle Saplings in Jungle biomes and Spruce Saplings in Taiga biomes). In IW 1.1.5+ for 1.19.2 you can also use a hoe to convert a Rooted Grass Block into a vanilla Grass Block.
Slowly form underneath tall deciduous Leaf Piles and in dark forests
A Dark Forest biome with a patch of Humus with Dark Oak Leaf Piles on top and Ivy growing on a nearby Dark Oak trunk
Generate in hot, dry biomes.
Badlands with a dry lakebed feature added by Immersive Weathering showing Vertisol and Cracked Mud
Form puddles when hydrated which can be right-clicked with an empty Glass Bottle to collect Pond Water. Generate in swamplands & rivers.
Hydrated Silt and Fluvisol occurring in a Swamp biome during rain
Permafrost causes cold damage on contact*, like Powder Snow. Villagers will not take damage from the dangerously cold Permafrost. Cryosol and Permafrost generate in frozen biomes. (*not currently working in version 3.0.2)
The edge of a Taiga biome with Permafrost, Cryosol, Snow, and snow-capped Grass Blocks on the ground and Icicles on the trees
Icicles are sharp ice spikes that grow under surfaces that get snowed on, and act as basically icy Dripstone. They do the same damage as dripstone, but they also react to vibrations & any kind of projectile will make them fall. Being hit by or falling on an Icicle will give you Frostbite, as if you fell into Powder Snow. Icicles also melt from light just like normal ice, so be careful near them.
To harvest Icicles you will need Silk Touch. You can then eat icicles for about 3 seconds of fire resistance. Tasty!
For where to find Icicles, see Natural Growth Features and World Generation
A cottage with Icicles that have formed under the eaves
In cold biomes, you may see Frost building up at night on Glass Blocks or on the Grass. It is purely a cosmetic effect, but is very pretty for building with & adds a much-needed extra touch to snowy builds.
The frost blockset consists of:
- Frost Covering
- Frosty Grass
- Frosty Fern
- Frosty Glass
- Frosty Glass Pane
Frosty blocks revert to their unfrosted blocks when in light.
Thin Ice will crack and break if you step on it, dumping you into Freezing Water. If you wear Frost Walker or Feather Falling boots, however, this is prevented.
Charred blocks have a chance to form when fire burns wooden logs, planks, slabs, stairs, fences, and fence gates. Lighting them with a Flint and Steel will change the texture to an animated smouldering version. Charred blocks cannot catch fire or be used as fuel in a Furnace.
The remains of a burned Woodland Mansion with many plain and smoldering Charred Planks visible as well as some Ash
When any block burns, it has a chance to turn into an ash layer. Ash can be stacked like snow and falling piles of ash will break and drop as items when landing on a partial block (like a lower half slab or a torch). Ash is also dropped as an item by Blazes and used in the crafting recipes for Mulch and Nulch.
Soot forms in thin layers on vertical surfaces above campfires, but is purely aesthetic and will not drop items.
New to IW 1.1.5+ for 1.19.2! Stone Bricks, Cobblestone, and Stone blocks now have two sandy variants, which can be created by Sandstorms. Using a shovel on a sandy block will drop a Sand Pile item; breaking the block will drop a Sand Pile item as well as the vanilla (non-sandy) block.
If a very sandy Stone Bricks, Cobblestone, or Stone block has air below it, it will randomly drop Sand Piles out of itself, each one decrementing its sand age by one until it hits zero, at which point it no longer drops sand. Additionally, if any sandy block has a block below it that can be sandy, it has a 3/5 chance (per block position in the world) to transfer its sandy state downward to the block below it.
When a Sand Pile more than one layer deep is on top of a block that can become sandy (Stone Bricks, Cobblestone, and Stone blocks) it will randomly subtract one layer from itself, convert the block below it to its sandy form (single or double sandy with equal likelihood) with a random "sand age" between 0 and 4. From that point, normal sand layer falling kicks in, and for each sand age, it can drop a sand layer and reduce its sand age by 1 until it gets to 0 at which point it remains stable.
Sand Piles will break and drop as Sand items when falling onto partial blocks (like piles of other materials, torches, and lower half slabs) and can be layered like Snow.
If a very sandy Stone Bricks, Cobblestone, or Stone block has air below, it will drop Sand Piles out of itself.
Over time a Sandstone (or Red Sandstone) block with Water above it and space below it will drop Sand Piles.
Sand Piles accumulating underneath Sandstone that has Water above it and space below
Sand Piles appearing in a Desert biome
Fulgurite and Vitrified Sand have a chance to generate nearby when Lightning strikes Sand. Vitrified Sand can also form where Lava or Flowing Lava contacts Sand.
Vitrified Sand is slightly translucent to the eye and not a solid block for Redstone purposes, unlike Sand, and does not fall when the block below it is removed.
Fulgurite formations and Vitrified Sand and Fire remaining after a lightning strike in a Desert biome
Flowing Lava in a desert Biome showing surrounding formations of Vitrified Sand, with some Vertisol in the background
Immersive Weathering adds two sets of iron blocks, Plate Iron and Cut Iron, stair and slab versions of each, and their waxed variants. Instead of oxidizing, these blocks rust, which has its own unique mechanics. They can be waxed using either Honeycomb or Tallow, preventing the block from rusting further & freezing it in the state of rust it is in. Plate and Cut Iron (including the rusted variants) can also be smelted into single iron ingots to recover some of the materials, although you may need to remove any wax using an axe first.
Crafting Plate Iron from Blocks of Iron
Crafting Cut Iron from Plate Iron
Various rustable blocks added by Immersive Weathering, including Plate Iron and Cut Iron and showing the particle effect from using Steel Wool to remove a layer of rust
Immersive weathering adds Stone, Prismarine Brick, Cracked Prismarine Brick, and Dark Prismarine walls.
Immersive Weathering adds a cracked version of Bricks, Stone Bricks, Deepslate Bricks, Blackstone Bricks, Nether Bricks, End Stone Bricks, Prismarine bricks, and Deepslate tiles. This includes the stair, slab, and walls for each type. Cracks can also form and spread over time.
Chiseled Prismarine Bricks can be obtained by crafting together two Prismarine Brick Slabs or by using a Stonecutter to cut Prismarine Bricks.
