Gumoss is Paldeck #12, a Grass / Ground Pal. It cannot be produced by cross-breeding — the only way to breed one is pairing a male and female Gumoss.

GrassGround HP 70ATK 70DEF 70 Planting 1
Plan a breeding route from YOUR Pals →| Gumoss + partner | Child | |
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Breeding power 2950 · gender ratio 50% ♂ / 50% ♀ · all combinations verified against the Palworld 1.0 game data (post-rebalance — many older calculators still show Early Access combos).
Open the free planner — reads your save, never uploads it