From Bone Dog

This entry actually points to the Bone Dog, which is a limited, Rare pet from the Halloween Event, not a crop you plant. That matters for how you value it: pets have no seed cost, sell price, or growth time because they are not farmed, they are hatched or earned, and their worth is measured in the buffs they provide and their standing on the trade market.

As a Rare-tier pet, the Bone Dog sits in the affordable, accessible band rather than the chase-tier. Its economic role is as a working buff source: pets in Grow a Garden contribute passive effects that improve harvests, mutation odds, or efficiency while equipped, and a Rare pet is the kind you actually keep active day to day rather than locking in a display. The real value comes from the effect it runs, not from flipping the pet itself.

Where its limited Halloween origin helps is longevity. Once the event ends and hatching stops, even a Rare pet gains some scarcity premium over time. The sensible play is to keep one equipped for its buff and, if you pulled spares, hold rather than dump them while supply is still fresh.