🐁 Brown Mouse Pet in Grow a Garden — Legendary
Brown Mouse is a Legendary pet from the Mythical Egg (27%), added in the Blood Moon update. It's one of the few pets that levels itself, and it gives you a higher jump.
Last verified against the Brown Mouse page and the ability data on the Grow a Garden wiki.
Mythical Egg, 27%.
📋 Brown Mouse at a glance
| Rarity | Legendary |
|---|---|
| How to get | Mythical Egg (27%) |
| Hunger | Not listed on the wiki |
| Ability (wiki wording) | Gains 750 bonus experience every 8 minutes. Increases the player's jump height by 12%. |
| Added | May 17, 2025 |
| Still obtainable? | Not stated on the wiki |
⚡ What its two abilities do
Whiskier Wisdom: every 8 minutes 23 seconds at base weight, the Brown Mouse gains 750 bonus XP for itself. The wiki says this stops when its hunger reaches zero, so keep it fed.
Cheese Hop: you jump 12% higher while it's out.
The Grey Mouse has the same idea with smaller numbers (500 XP every 10:03, and a speed bonus instead of jump). The wiki notes the Brown Mouse was once the fastest self-leveling pet, but the Starfish has since taken over that role.
📈 Brown Mouse stats by weight
| Pet weight | Cooldown | Bonus XP |
|---|---|---|
| 10 kg | 7:13 | 860 |
| 25 kg | 5:28 | 1,025 |
| 50 kg | 2:33 | 1,300 |
| 70 kg | 0:15 | 1,520 |
| Pet weight | Jump height bonus |
|---|---|
| 10 kg | 13% |
| 25 kg | 14.5% |
| 50 kg | 17% |
| 70 kg | 19% |
Weight helps the XP twice: the cooldown falls 7 seconds per kilogram, to a 15-second floor at about 70 kg, and each payout grows 11 XP per kilogram with no cap. At 70 kg that's 1,520 XP every 15 seconds. The jump bonus grows 0.1% per kilogram.
⚡ See Brown Mouse's ability at your pet's weight →
❓ FAQ
What does the Brown Mouse do in Grow a Garden?
It gives itself 750 bonus XP every 8:23 at base weight (more XP, faster, as it gets heavier), and you jump 12% higher.
Brown Mouse or Grey Mouse?
Brown Mouse. It gains more XP per payout on a shorter cooldown.
Why did my Brown Mouse stop gaining XP?
Its ability stops at zero hunger. Feed it.