Firefly — Grow a Garden 2
The Firefly is a Mythic-rarity pet that spawns in the wild with a 0.6% chance and can be bought for 3,000,000 Sheckles when it appears. Each equipped Firefly makes newly-sown plants grow 2% bigger, stacking up to +50% — the backbone of the community's giant-crop strategies.
How to get Firefly
It appears on the map as a wild spawn with a 0.6% chance; when one spawns you can buy it for 3,000,000 Sheckles. It is not a Seed Shop item.
Firefly stats
| Category | Pet (Mythic rarity) |
|---|---|
| Added | July 12, 2026, with the Eclipse update cycle (exact sub-version not stated in accessible sources) |
| How it appears | Wild map spawn, 0.6% chance |
| Price when spawned | 3,000,000 Sheckles |
| Ability | +2% plant size per equipped Firefly, applied to newly-sown plants |
| Stack cap | +50% total across multiple Fireflies |
| Pet mutations | Big ×2 (+4% each), Huge ×3 (+6% each), Rainbow ×1.25 — a Huge Rainbow Firefly grants +7.5% per equipped |
Tips
- The bonus only applies to newly-sown plants — equip your Fireflies BEFORE planting expensive seeds, not after.
- The effect stacks to +50%: serious players run multiple (mutated) Fireflies to hit the cap with fewer pets.
- Bigger plants sell for more, which is why Firefly + high-value seeds (e.g. Star Fruit) is the community's go-to compounding strategy.
Related items
- Eclipse Bloom — Secret Crop
- Star Fruit — Super Crop
- Sun Bloom — Super Crop
Sources
- growagarden2wiki.net/pets/firefly/ — Mythic, July 12 2026, 0.6% wild spawn, 3,000,000 Sheckles, +2% per equipped / max +50%, mutation multipliers Big ×2 / Huge ×3 / Rainbow ×1.25
- growagardencalculator.com/grow-a-garden-2/wiki/pets/firefly/ — 0.6% spawn, 3,000,000 Sheckles, +2% plant size stacking to 50% (page blocks direct fetch; data cross-checked via search summaries)
- Sportskeeda — What does the Firefly do in Grow a Garden 2