Brontosaurus in Grow a Garden: Mythical pet, egg odds and ability
Facts
| Rarity | Mythical |
|---|---|
| Obtainable now (wiki) | No |
| Added | Jul 5, 2025 (Prehistoric Event) |
| Hunger | 80,000 |
| Hatches from | Dinosaur Egg (1%) |
| Abilities with numbers | Giant Incubator |
Where Brontosaurus hatches and the odds
| Egg | Egg price | Hatch time | Hatch chance | Eggs on average (100 / chance) |
|---|---|---|---|---|
| Dinosaur Egg | – | 4 hours 10 minutes | 1% | 100 |
Eggs on average is 100 divided by the hatch chance. It is an average over many eggs, not a promise that the pet comes within that many.
Brontosaurus abilities
| Ability | Stat | Level 1 | Level 100 | Change per level | Limit |
|---|---|---|---|---|---|
| Giant Incubator | Chance | 5.25% | 15.15% | +0.1% | max 30% |
Level 1 and level 100 are calculated here with the wiki's own ability formula: base value plus the change per level, held inside the limit. Stat names follow the wiki's data; the effect itself is described on the wiki page linked below.
Related pets
- Raptor: also hatches from the Dinosaur Egg
- Triceratops: also hatches from the Dinosaur Egg
- Stegosaurus: also hatches from the Dinosaur Egg
- Brown Owl: another Mythical pet
All Grow a Garden pets · Egg odds and prices · Grow a Garden
FAQ
How do I get Brontosaurus in Grow a Garden?
Brontosaurus hatches from this egg: Dinosaur Egg (1%). The wiki marks it as not obtainable now.
What are the ability numbers of Brontosaurus?
Brontosaurus has the ability Giant Incubator: Chance 5.25% at level 1 and 15.15% at level 100.
How many eggs does it take to hatch Brontosaurus?
Brontosaurus: Dinosaur Egg 1%, about 100 eggs on average (100 divided by the chance). It is an average, not a guarantee.
Source: Grow a Garden Wiki Brontosaurus (rev 152062), Module:Passive/Data (rev 153487), and the pages of the eggs above. CC BY-SA 3.0. Numbers were restructured and some were calculated here; the wording is ours and no wiki images are used. Original Grow a Garden, not Grow a Garden 2. Checked Oct 15, 2026.