Flower Boucage

Taken all the way down to base materials, one Flower Boucage is 2 crafting steps deep and needs 1 intermediate — Growth Formula Kappa ×2 — which resolves to 6 distinct raw materials totalling 15 units, plus 30 crystals.

That bill outweighs 6,735 of the 13,602 recipes tracked here and 1,233 of the 1,591 Alchemist ones, and 4,464 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 14 are burned by the intermediates, so the real crystal cost is 22 Water Crystal and 8 Lightning Crystal.

Every step is Alchemist work, from a Lv 76 intermediate up to the Lv 90 finish, so one class covers the whole chain.

3 of the 6 raw materials come out of the ground, and one of them is time-gated: Bamboo Stick (7:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Growth Formula Kappa has the widest use: 40 recipes call for it, spanning four of the eight crafting classes.