MANGROVE LOG

Mangrove is the tree that travels. It does not drop saplings like the others: propagules hang under the leaves, you pick them straight off, and they will take root in mud, in grass and in shallow water, which no other species will do. One visit to a mangrove swamp with a pocket of propagules is a permanent supply anywhere you decide to live.

That is the context for the merchant's offer of 8 logs for 1 emerald, out of his rare stock and good for 4 uses. It is starting capital, not a supply line. No recipe in Java 26.2 produces it: it is gathered from the world rather than made. The wood underneath the bark is a deep red, dark enough to pass for something from the nether, which is most of the reason builders want it in the first place.

One row, one seller. The Wandering Trader sells mangrove logs at 1 emerald for 8 from his rare stock, a fixed number in his table, so the merchant you meet next month asks the same as the one in your garden today.

The village side of the economy is empty. No profession sells mangrove at any tier and none buys it, so there is no reputation to build, no level to grind and no cure discount to chase. He does not want it back either. Six items make up everything the trader accepts, and every one of them is something other than wood, which leaves logs as a one way purchase and never a source of income.

He asks 1 emerald for 8, which works out at well under an emerald each, and 5 of the other 75 come cheaper. Price is the easy part: he draws a rare slot from a shared pool, so catching one that happens to be carrying mangrove log is the real constraint.

The Wandering Trader asks 1 emerald for 8 mangrove logs. 8 of the 72 villagers that pay emeralds, emptied out:

an oak boat against 24 paper for the same 1 emerald, 24 times the carrying, and the shortest wait is the Leatherworker at 37.5 real seconds of shelf, gathering not counted.

The merchant arrives under his own steam. He spawns near the player with two leashed llamas, stays for forty minutes and change, and then leaves whether or not his stock is sold. He has no job, so he has no workstation, no tiers and no offers that can be rerolled by breaking a block. Nothing you build makes him come sooner or stay longer, and no amount of trading with him unlocks a better price the way it would with a villager who has levels to climb.

His mangrove row only points one way: emeralds out, logs in. There is no version of this trade where he takes wood off you.

Because his goods are sampled at spawn, a merchant without mangrove today will never have it, and the one who does have it can only sell 4 times, totalling 32 logs, before the slot locks permanently. Restocking belongs to villagers with job sites and he is not one of them. If you want to spend that slot in pieces, name tag him. Naming him switches the despawn timer off, and a leash will walk him to wherever you would rather keep your shop.

Buy once, then stop. 1 emerald gets you 8 logs and the whole slot is 32 for 4, while a stack would want 8 trades and 8 emeralds. What you cannot buy from him is a propagule, and the propagule is the part that ends the problem.

When you do get to a swamp, take propagules rather than logs, and remember that bone meal works on one while it is still hanging from the leaves. Plant them in mud at home, keep the roots you break as a block in their own right, and the trader becomes irrelevant to your world within a day.

Also on the wandering trader's list: pale oak log, enchanted iron pickaxe, water bottle, water bucket, milk bucket, fermented spider eye. The wood rows are all priced alike, so the only real question is which biome you would rather not travel to.

Mangroves grow in swamp on mud, with roots that spread out above the waterline and let the water flow through them. That makes the wood the only one you harvest while standing in a boat, and the roots a separate block that most builders end up wanting more than the logs.

The planks are red, close enough to crimson to pass at a distance but available in the overworld, which is most of why people carry it home.

Mud is the other half of the biome and it is worth a trip: mud plus wheat makes packed mud, and packed mud makes mud bricks, a whole building set that exists nowhere else.

Mangroves grow from propagules rather than saplings, and their roots sprawl wide, so give each one space. If no mangrove swamp is anywhere near, the wandering trader's 8 Mangrove Logs per emerald are the shortcut; after that, How to Build a Tree Farm in Minecraft takes over.