Seedling

The seedling can be obtained from Plantera. It summons a Pet Sapling which will follow you, as your pet. There is a 5% (or 1/20) chance of it dropping, which makes it very rare and valuable. If the player flies too high, it will sprout leaflets and use them to fly with you, acting as "wings" Like many other pets, it does not attack enemies. Not obtainable by chests anymore.