Radiant Mutation Grow a Garden: Pet Mutation Guide [2026]
By Morgan Blake ยท Mutations Expert ยท Updated
The Radiant mutation in Grow a Garden is a pet mutation, not a crop multiplier. A Radiant pet advances a nearby plant's growth by 24 hours every 20 to 30 minutes. The Pet Mutation Machine applies it at a 3.22% chance to a pet at level 50 or higher. GAGdata's older 16x crop entry has no outside source.
What Is the Radiant Mutation in Grow a Garden
Radiant is a pet mutation. Every outside guide that names it lists the same thing: a mutation you put on a pet, not a multiplier you get on a crop. A Radiant pet makes the plants around it grow faster. It does not raise the Sheckle value of a fruit.
This matters because the GAGdata crop database still has an older Radiant row at 16ร, Rare rarity, Site data, unverified. No guide we checked lists that row, so this page is built on the pet mutation. The full pet list is in the pet mutations guide, and crop mutations are on the Mutations hub.
This page covers the original Grow a Garden. Grow a Garden 2 is a separate game with its own mutation list, so do not carry any number across.
Radiant Mutation Effect: What a Radiant Pet Does
A Radiant pet emits sunshine at a random nearby plant. That plant grows 24 hours in one step. The pulse repeats every 20 to 30 minutes while the pet is out. GAGdata pet data rates it tier B and says it helps most with slow growing crops.
| Hours the pet is out | Pulses | Growth hours added, spread over random plants |
|---|---|---|
| 1 | 2 to 3 | 48 to 72 |
| 8 | 16 to 24 | 384 to 576 |
| 24 | 48 to 72 | 1,152 to 1,728 |
The pulse picks a random plant, so one plant does not get every step. Treat the table as the ceiling across your whole garden. See the pet abilities guide for how other pets compare.
How to Get the Radiant Mutation
To get the Radiant mutation, level a pet to 50, place it in the Pet Mutation Machine next to the Pet Eggs shop, pay the fee and wait 60 minutes. The result is random, and Radiant comes up 3.22% of the time. Guides list the fee as 500 million or 1 billion Sheckles, so check the price shown in game.
| Step | What to do | Detail |
|---|---|---|
| 1 | Raise a pet to level 50 or higher | Guides agree on the minimum. Use the pet leveling guide and the XP calculator. |
| 2 | Go to the Pet Mutation Machine | It stands next to the Pet Eggs shop. Press E to place the pet. |
| 3 | Pay the machine fee | Guides list 500 million or 1 billion Sheckles. Read the price on the machine before you pay. |
| 4 | Wait 60 minutes | The timer runs about one hour. Press E again to take the pet back. |
| 5 | Check the result | The mutation is random. Radiant is one possible result at 3.22%. The pet age resets after the machine. |
Need to reach level 50 first? Use the pet leveling guide and the pet XP calculator. One guide says the machine can overwrite a mutation the pet already has, so check before you risk a good one.
Radiant Mutation Cost and Odds
The machine charges a fee for each attempt, whatever the result. Radiant lands 3.22% of the time, so the average is about 31 attempts. At 500 million Sheckles an attempt that is about 15.5 billion Sheckles. At 1 billion it is about 31.1 billion. A single attempt takes about 60 minutes.
| Attempts | Chance of at least one Radiant | Spend at 500 million per try | Spend at 1 billion per try |
|---|---|---|---|
| 1 | 3% | 500 million | 1 billion |
| 10 | 28% | 5 billion | 10 billion |
| 32 | 65% | 16 billion | 32 billion |
| 64 | 88% | 32 billion | 64 billion |
Where Guides Disagree on Radiant
| Detail | One side | Other side | This page |
|---|---|---|---|
| Machine fee | 500 million Sheckles: GAGdata data, ProGameGuides, growagardenpro.com | 1 billion Sheckles: growagardencalculator.io, Sportskeeda | Show both. Check the price on the machine. |
| Rarity label | Rare: growagardenpro.com | Epic: growagardencalculator.io, GAGdata mutation types page | Do not state a rarity as fact. |
| Machine odds | 3.22%: Sportskeeda, growagardencalculator.io, growagardenpro.com, GAGdata | 3.12%: esports.gg | Use 3.22%. The 3.12% looks like a typo. |
| Type | Pet mutation: every outside guide that names Radiant | 16x crop mutation: GAGdata crop data and the topical map only | Treat Radiant as a pet mutation. |
Radiant Mutation Multiplier: Why There Is No 16x
Players search for a Radiant multiplier because most mutations have one. Radiant does not, in any outside guide. The only 16ร figure comes from GAGdata crop data, which describes a crop drop from daytime harvests in sunny weather. No guide describes that route. Label: Site data, unverified
| Source | Lists Radiant as | Note |
|---|---|---|
| growagardencalculator.io | Pet mutation | Growth category. Effect: emits sunshine at a random nearby plant and advances its growth by 24 hours. Chance 3.22%. Fee 1,000,000,000 Sheckles. Level 50+. Mutation time 1 hour. Rarity Epic. |
| growagardenpro.com | Pet mutation | Rarity Rare. Same 24 hour effect, chance 3.22%, fee 500 million Sheckles, 1 hour wait, level 50+. |
| ProGameGuides | Pet mutation | Effect: sunshine from the pet speeds plant growth for 24 hours, applied every 20 to 30 minutes. Fee 500 million Sheckles. Pet must be above level 50. |
| Sportskeeda | Pet mutation | Effect: boost plant growth by 24 hours every 20 to 30 minutes. Odds 3.22%. Names a 1 billion Sheckle mutation price in general. |
| esports.gg | Pet mutation | Advances plant growth by 24 hours every 20 to 30 minutes. Odds printed as 3.12%. Level 50 minimum. No fee listed. |
| Pocket Tactics | Not a crop mutation | The crop mutation list has no Radiant row. The page covers crop mutations only. |
| GAGdata pet mutation data | Pet mutation | Tier B. Advances plant growth by 24 hours. Machine chance 3.22%. Fee 500 million Sheckles. Last verified 2026-06-22. |
| GAGdata crop mutation data | 16x crop mutation | Rare, cosmic, drops from daytime harvests in sunny weather. No outside guide lists it. |
Some GAGdata pages, including the mutation database, still show the older crop figure while we correct them. For the confirmed crop multipliers and the stacking rules, use the mutation stacking guide and the mutation calculator.
Best Pets and Crops for the Radiant Mutation
No guide names a best pet or crop for Radiant. GAGdata pet data suggests slow growing crops such as Beanstalk, because a 24 hour step removes the most waiting there. Site data, unverified The mutation lands on a pet you already own, so pick a pet whose own ability you want to keep. A pet that is already level 50 is the cheapest to risk.
Radiant vs Other Pet Mutations
Radiant and Nocturnal both speed up plant growth. Nocturnal works during night hours, and the sources list no time limit for Radiant. Rainbow and Aurora share the 3.22% machine chance in GAGdata data. The values below come from GAGdata pet mutation data. See the full list in the pet mutations guide.
| Mutation | Effect | Machine chance | Note |
|---|---|---|---|
| Radiant | Advances a plant 24h every 20 to 30 min | 3.22% | This page |
| Nocturnal | Accelerates plant growth during night hours | Not listed | GAGdata pet data. Plant growth at night. |
| Rainbow | +20% passive ability bonus | 3.22% | GAGdata pet data |
| Aurora | 3โ50% chance to apply Aurora (ร10) to crops | 3.22% | GAGdata pet data |
Radiant Mutation Data Status
We checked eight sources on October 30, 2026. We have not run an in-game test. A detail counts as confirmed only when two or more outside guides agree.
| Item | Status | Detail |
|---|---|---|
| Radiant is a pet mutation | Confirmed | Five outside guides and GAGdata pet data agree. |
| Effect: advances a plant 24 hours | Confirmed | Every guide that lists the effect gives 24 hours. |
| Interval of 20 to 30 minutes | Confirmed | Four guides give the range. GAGdata data prints it as 30 to 20. |
| Machine chance 3.22% | Confirmed | Three outside guides and GAGdata data. One guide prints 3.12%. |
| Pet level 50 or higher | Confirmed | Guides agree. ProGameGuides words it as above level 50. |
| Mutation time of about 1 hour | Confirmed | Guides and GAGdata data agree. |
| Machine fee | Sources disagree | 500 million in three sources, 1 billion in two. |
| Rarity | Sources disagree | Rare in one guide, Epic in another. |
| 16x multiplier on crops | Site data, unverified | GAGdata crop data and the map only. No outside guide lists it. |
| Sunny weather drop route | Site data, unverified | GAGdata crop data only. No outside guide describes it. |
| Release date July 12, 2025, version 1.14.0 | Site data, unverified | One source, growagardencalculator.io. |
| Best crops | Site data, unverified | GAGdata suggests slow growing crops such as Beanstalk. No outside source. |
| Grow a Garden 2 | Site data, unverified | No source checked covers Radiant in Grow a Garden 2. |
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