Sprout is a Legends of Idleon NPC: quest reward, 4 quests.

Sprout | Idleon Toolbox

Sprout

Adam's_Leaf

Frisbee_Ring

MCR_Tshirt

Iron_Boots

Goo_Galoshes

Flip_Flops

I don't think the sculptor who named this statue back in 3000 BC would be happy with how his typo would be interpreted.

Thicc_Skin_Statue

Hold down to gain EXP in the skill that's displayed in the corner of your screen. If you're in a town, you will gain EXP in the town skill. The amount of EXP you get is based on your skill's Lv.

Small_Experience_Balloon

Smelt down 4 Ores into 1 Bar at the Forge. Smelting will take 30 per Bar using Forge Slot 1.

Iron_Ore

Proof that you completed all of Sproutinald's quests! Hold down to add to your token bag found in Storage Info. DONT SELL THIS ITEM

Sproutinald_Token

Sprout's red frisbee! I hope you didn't get shrunken down by a magic apple on your way up, or your stetchy dog brother might laugh at you!

Red_Frisbee

Stick

The_Base_Of_The_Bark

Collect all the sticks and stones so Sprout won't ever break his bones.

Sticks_and_Stone_Something_Something_Bones...

Defeat stick monsters with no clothes equipped, just a weapon.

Justice_Wears_No_Clothes

Get a bunch of shoes for Sprout to try on.

Shoe_Shopping_with_Sprout

Get the frisbee back from the top of this tree.