To grow a Forest Sapling to Level 6 Forest Tree: 180 waters, 130 saps, 42 forest seeds, 160 forest petals, 100 forest nectars, 45 forest woods, 30 forest spirits, 61 forest extracts, 40 forest blooms.
The above total includes the following crafted items: 13 Petal Potions (130 forest petals, 130 sap), 3 Forest Essences (45 forest wood, 30 forest spirits, 21 forest extract), and 4 Forest Magics (40 forest extracts, 40 forest blooms, 4 Petal Potions {see above}).
1: 10 forest seeds, 15 water
2: 20 water, 14 forest seeds, 10 forest petals
3: 20 forest petals, 18 forest seeds, 3 petal potions, 25 water
4: 3 petal potions, 1 forest essence, 20 forest nectar, 30 water
5: 3 petal potion, 1 forest essence, 30 forest nectar, 40 water
6: 1 forest essence, 4 forest magic, 50 forest necter, 50 water
Petal Potion: 10 Forest petals, 10 sap
Forest Essence: 15 forest wood, 10 forest spirits, 7 forest extract
Forest Magic: 10 Forest Extracts, 10 Forest Blooms, 1 Petal Potion
(Forest Sword: 2 Forest Wood, 1 longsword)
Forest Seeds come from the Castle's Forest Adventure
Forest Petals come from Iceland Poppies
Forest Nectar comes from the Forest Dahlia gifted by Ivy
Forest Wood Comes from trees
Forest Spirits come from slaying Forest Raccoons with Forest Sword
Forest Extracts come from Forest Thistle gifted by Thomas
Forest Blooms come from Paradise Bloom gifted by Ivy
(Shared because I'm trying to decide if I'm going to raise a second tree.
)