Wall Planter

Taken all the way down to base materials, one Wall Planter is 3 crafting steps deep and needs 3 intermediates — Iron Rivets ×2, Walnut Lumber ×2 and Iron Ingot ×2 — which resolve to 4 distinct raw materials totalling 18 units, plus 13 crystals.

That bill outweighs 7,380 of the 13,602 recipes tracked here and 1,264 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 8 are burned by the intermediates, so the real crystal cost is 4 Fire Shard, 4 Wind Shard, 3 Water Shard and 1 other kind.

The chain crosses three disciplines — Alchemist to Lv 27, Carpenter to Lv 25 and Blacksmith to Lv 18 — so no single class can finish it unaided.

All 4 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Wall Planter is itself consumed by 1 further recipe, all of them Goldsmith recipes.