I’ll be honest with you when I first saw the Chubby Chipmunk event announced in Grow a Garden, I thought it was just another cute pet addition. But after spending the entire weekend grinding this event and unlocking some seriously rare rewards, I realized this little guy is way more important than I initially thought. The weight system? It’s basically the key to unlocking the best loot in the entire Nutty Fever update.
If you’re scratching your head wondering why your Chubby Chipmunk isn’t gaining weight fast enough, or if you’re struggling to trigger those sweet acorn spawns, you’re in the right place. I’ve tested every method, made plenty of mistakes (RIP to all those favorited fruits I wasted), and finally cracked the code on maximizing weight gain efficiently. Let me walk you through everything I’ve learned so you don’t have to waste time like I did.
The Chubby Chipmunk is the star of the latest Nutty Fever event that dropped on October 4th, 2025. Unlike other pets in Grow a Garden that mainly provide passive bonuses or farm faster, this adorable rodent has a completely unique mechanic—it eats your fruits and literally gets fatter.
Here’s what makes this pet special: every time it munches on a fruit from your garden, it gains weight and spawns an acorn somewhere in your plot. These acorns aren’t just decorative—they give you event-specific rewards that range from common seeds to exotic chests containing rare pets and exclusive furniture.
The best part? You can claim the Chubby Chipmunk completely free by heading to the event area and clicking on the “Free Chipmunk” banner right next to the Nuts NPC. No crates to open, no gamepasses required. Just walk up and claim your new farming companion.
But here’s the catch that I learned the hard way: the heavier your Chubby Chipmunk becomes, the better rewards you unlock through the event tier track. A lightweight chipmunk will only get you basic rewards, while a properly fattened-up chipmunk can unlock exotic chests, rare pets like the Chinchilla and Farmer Chipmunk, and exclusive acorn-themed furniture that you can’t get anywhere else.
Honestly, I’ve played through almost every major Grow a Garden event since I started from the Fairy World update to the Fall Market—and this one hits different. There’s something weirdly satisfying about watching this tiny chipmunk slowly transform into an absolute unit while your garden gets progressively more chaotic with acorns spawning everywhere.
What I love most is how active this event keeps me. Unlike passive farming where you just plant, wait, and harvest, the Chubby Chipmunk system forces you to stay engaged. Every 4-5 minutes, I’m checking if my chipmunk ate something, running around collecting those precious acorns, and strategizing which fruits to feed next for maximum weight gain.
The Grow a Garden Nutty Fever event also introduced some genuinely useful quality-of-life improvements that make farming less tedious. The developers clearly listened to community feedback, and it shows.
But real talk? The best part is the social aspect. My entire friend group is competing to see who can raise the fattest chipmunk, and the Discord server is absolutely buzzing with people sharing their progress and weight gain strategies. There’s something hilarious about a bunch of adults bragging about their virtual chipmunk’s weight like proud parents.
Alright, let’s get into the meat of this guide—the actual methods to bulk up your furry friend. I’m going to break down every single technique I’ve discovered, from the completely passive approaches to the hardcore grinding strategies.
This is your baseline method, and it requires basically zero effort on your part. Once you place your Chubby Chipmunk in your garden, it will automatically start its feeding cycle.
Here’s how the passive trait works:
The passive system is honestly pretty forgiving. I went AFK for about an hour while watching Netflix, and when I came back, my chipmunk had gained roughly 0.1 KG just from doing its thing. It’s not lightning-fast, but if you’re a casual player who just wants steady progress, this method alone will get you there.
Pro tip I learned: Don’t favorite too many fruits if you want consistent passive gains. My biggest mistake early on was favoriting everything I thought looked cool, and then I wondered why my chipmunk barely grew. Keep only your most valuable mutated fruits or single-harvest plants favorited.
This is where things get interesting, and where you can seriously accelerate your chipmunk’s growth. Manual feeding has a chance-based system that can multiply your weight gains if you do it right.
Manual Feeding Mechanics:
Here’s my tested feeding strategy that actually works: Focus on feeding fruits with multiple mutations. I’ve been farming Crimson Thorns and Maple Resin plants specifically because they’re easier to mutate and have decent growth cycles. Every time I get a 2-3 mutation fruit, I immediately feed it to my chipmunk instead of selling it.
The math actually checks out beautifully. If you’re feeding your chipmunk mutated fruits every few minutes (while it’s not full), you can easily double or even triple the passive weight gain rate. I tracked my progress over 2 hours, and manual feeding with mutated fruits gave me an extra 0.3 KG compared to just letting the passive system run.
Mutation combinations that work best:
This is hands down the fastest method I’ve found, and it’s what separates casual players from the people dominating the reward tracks. The Nutty Fever event is a temporary buff state that drastically reduces your chipmunk’s eating cooldown, letting it gain weight at an absolutely insane rate.
How to trigger Nutty Fever:
I cannot stress enough how powerful this is. During my first Nutty Fever activation, my chipmunk gained more weight in 10 minutes than it had in the previous hour. The acorns were spawning so fast I could barely keep up with collecting them all.
Advanced Nutty Fever strategy:
The only downside? Nutty Fever requires actual effort. You’re running around like a maniac harvesting, submitting, and collecting acorns. But if you want maximum efficiency, this is your best bet.
This method is more advanced and requires some investment, but it creates a permanent boost to your chipmunk’s weight gain potential. Pet mutations in Grow a Garden can fundamentally change how a pet behaves, and there are two specific mutations that work wonders for the Chubby Chipmunk.
The two mutation types that help:
When you apply these mutations to your Chubby Chipmunk, its hunger bar depletes faster, which means it eats more frequently, which translates to faster weight gain. It’s a simple cause-and-effect chain that compounds over time.
I applied a Mega mutation to my chipmunk on Day 2 of the event, and the difference was immediately noticeable. Instead of eating every 5 minutes, it was eating every 3-4 minutes. Over the course of a full day, that’s roughly 30-40% more feeding cycles.
Where to get mutation beans:
Fair warning: Mutated pets have higher hunger requirements, so make sure your garden can actually sustain the increased food consumption. I made the mistake of mutating my chipmunk before expanding my garden, and it kept going hungry. Not ideal.
This might sound basic, but your garden setup plays a huge role in how efficiently your chipmunk gains weight. I spent way too long with a disorganized garden before realizing I was sabotaging myself.
Garden optimization tips:
My current setup focuses heavily on berries, squash, and nut-type plants since they align with the event theme. I keep about 40 multi-harvest plants growing constantly, with another 20 plots for quick-growing crops I can harvest for Nutty Fever triggers.
Here’s something most guides gloss over: understanding why weight matters and what thresholds you should aim for. The event operates on a tiered reward system where specific weight milestones unlock progressively better loot.
Based on my testing and community data:
I’m currently sitting at 28 KG on my main chipmunk, and the rewards have gotten noticeably better. The jump from 15 to 25 KG was where I started seeing exotic chests drop regularly instead of basic ones.
What you unlock at higher weights:
Let me save you from the errors I made when I first started grinding this event.
Mistake #1: Favoriting Too Many Fruits I cannot emphasize this enough. Your chipmunk will not eat favorited fruits during its passive feeding cycles. I had about 30 plants favorited at one point, and my weight gain crawled to a halt. Only favorite single-harvest or extremely rare mutated fruits you’re saving for specific purposes.
Mistake #2: Ignoring Nutty Fever Some players just let the event run passively, which is fine for casual play. But if you want to compete for top rewards, you need to trigger Nutty Fever multiple times. It’s the single biggest multiplier to your weight gain speed.
Mistake #3: Not Manually Feeding Enough The passive system alone is too slow to reach the higher weight tiers before the event ends. I recommend manually feeding at least 20-30 times per hour if you’re actively playing. That’s the sweet spot between efficient and not tedious.
Mistake #4: Applying Mutations Too Early Don’t mutate your chipmunk until you’ve expanded your garden capacity. A hungry mutated pet is worse than a well-fed regular pet. Get your infrastructure set up first.
Mistake #5: Not Collecting Acorns Immediately Acorns can despawn after a certain time period. I’ve lost at least 15-20 acorns by being lazy about collection. Set up a habit of checking for acorns every few minutes.
If you’re serious about maxing out your chipmunk weight before the event ends on October 11th, these advanced strategies will give you an edge.
Strategy 1: Multi-Account Farming (If Allowed) Some players run multiple accounts to farm resources for their main account. While this is technically allowed in Grow a Garden, check the game’s current terms of service first. You can use alt accounts to grow fruits and trade them to your main for unlimited manual feeding resources.
Strategy 2: Time Your Play Sessions Around Nutty Fever Instead of playing randomly throughout the day, I’ve started scheduling focused 30-minute sessions where I trigger Nutty Fever and go absolutely ham. This concentrated effort yields better results than casual all-day playing.
Strategy 3: Join Active Discord Communities The Grow a Garden Discord has channels dedicated to event coordination. Players organize “mass Nutty Fever” sessions where everyone triggers the event simultaneously, and there are often admin-hosted events with bonus multipliers.
Strategy 4: Trade for Pre-Mutated Fruits If you’re struggling to mutate fruits yourself, trading with other players can save massive time. I’ve traded common pets for stacks of 2-3 mutation fruits, which immediately boosted my feeding efficiency.
Strategy 5: Optimize Mutation Farming Learn the mutation system if you haven’t already. Certain weather events and moon phases increase mutation probability. I time my farming during full moon phases and meteor showers to get more mutated crops naturally.
I’m a spreadsheet nerd, so I’ve been tracking my chipmunk’s weight growth in Excel (don’t judge me). Here’s what I monitor:
Based on my data, you need to gain roughly 6-8 KG per day to hit the 50 KG threshold before the event ends. That’s totally achievable with a combination of passive gains, manual feeding, and 2-3 Nutty Fever triggers daily.
If you’re falling behind pace, double down on manual feeding with mutated fruits and increase your Nutty Fever frequency. The math works out if you stay consistent.
So you’ve successfully raised a chonky chipmunk—now what? According to the event mechanics, heavier chipmunks continue to unlock better rewards through the tier progression system. There’s no “max” weight cap that I’ve discovered yet, and community reports suggest players have exceeded 70 KG already.
The end-game loop essentially becomes:
Even if you’ve unlocked all the main rewards, there’s still value in continuing to farm. Exotic Nutty Chests can drop rare pets with perfect stats, and the limited furniture pieces will likely become valuable trading commodities after the event ends.
With aggressive grinding (6+ hours daily, multiple Nutty Fever triggers, constant manual feeding), you can reach 50 KG in about 5–6 days. Casual players taking a more relaxed approach might need the full event duration (7 days).
Nope! Weight is permanent and only increases. You never have to worry about your progress resetting or the chipmunk getting lighter.
Currently, the event only allows one free Chubby Chipmunk per account. However, the paid variants (Farmer Chipmunk, Idol Chipmunk) might have different weight mechanics.
If the hunger bar hits zero, the chipmunk stops its passive eating cycle until you feed it again. It doesn’t lose weight or die, but you stop gaining weight until you address the hunger issue.
Yes, absolutely. Mutated fruits increase the probability of weight gain during manual feeding. A triple-mutation fruit can have up to a 25% chance of triggering weight gain versus the base 15.10%.
You’ll see a notification at the top of your screen, and the entire event area will have visual effects. Your chipmunk will also eat fruits noticeably faster during the active period.
According to the current event rules, the free Chubby Chipmunk is bound to your account and cannot be traded. However, other event pets might be tradeable.
Technically, any fruit works, but I prioritize fruits with multiple mutations first. In terms of raw efficiency, Crimson Thorns and Maple Resin have worked best for me due to their growth speed and mutation potential.
Look, I’ll level with you grinding the Chubby Chipmunk event isn’t for everyone. It requires time, strategy, and honestly a bit of patience. But seeing that weight number climb higher each day while unlocking increasingly rare rewards? There’s something genuinely satisfying about it.
I’ve spent way more hours on this event than I probably should have (my actual garden needs attention now), but the community aspect and the satisfaction of optimization keep pulling me back in. Whether you’re going for the absolute maximum weight or just casually enjoying the event, the key is staying consistent with feeding and not making the mistakes I did early on.
If you found this guide helpful, drop a comment sharing your chipmunk’s current weight. I’m genuinely curious to see who’s managed to raise the chonkiest chipmunk out there. And if you’ve discovered any methods I missed, definitely let me know I’m always looking for ways to optimize my grinding strategies.
Now if you’ll excuse me, I have a Nutty Fever event to trigger. These acorns won’t collect themselves.
