Aurora Mutation
×90The Aurora mutation is a Weather mutation in Grow a Garden that adds a ×90 multiplier to a crop's value bracket. Source: Aurora Borealis event.
- Multiplier
- ×90
- Category
- Weather
- Source
- Aurora Borealis event
Aurora analysis
Aurora matters for two reasons: a solid multiplier in its own right, and it is the other half of the Cosmic fusion. Aurora events are also the best window for chasing the Rainbow growth tier, so they are doubly worth farming.
Overall ranking
#14 of 45Aurora is the 14th-strongest mutation in the game and 2nd of 14 in the Weather category. That is 3.0× the median mutation multiplier of ×30.
Bracket contribution
+89Because the bracket is 1 + Σ(multipliers) − N, each mutation really adds its multiplier minus one. Aurora therefore contributes +89 to the bracket, not ×90 on top of everything else — a common misreading when pricing trades.
Marginal gain when stacked
+40.6%Added to a Shocked + Celestial stack (a ×219 bracket), Aurora raises it to ×308 — a 40.6% increase. Aurora is a genuinely strong pick at #14 of 45, adding 40.6% to an established stack. Worth targeting deliberately, though not ahead of an elite-tier mutation.
How to obtain
WeatherSource: Aurora Borealis event. Aurora needs aurora borealis event live, so it cannot be forced. Keep your highest base-value crops planted and unharvested whenever that is due.
Used as fusion material
1 comboAurora is a component of Cosmic (×240). Check the fusion maths before combining — the bracket formula subtracts one per mutation, so merging is not automatically an upgrade.
Where Aurora sits in the ranking
The next mutation up is Shocked (×100), worth 10 more to the bracket. Immediately below it is Foxfire (×90). If Aurora is out of reach, that is the closest practical substitute.
Aurora crop value examples
Estimated sell price for a Gold crop at base weight, before and after applying the Aurora mutation. Higher base-value crops gain the most raw Sheckles.
| Crop | Gold (₡) | + Aurora (₡) |
|---|---|---|
| Sunflower | 2,888,000 | 259,920,000 |
| Mushroom | 2,725,560 | 245,300,400 |
| Beanstalk | 505,400 | 45,486,000 |
| Dragon Fruit | 85,740 | 7,716,600 |
| Cactus | 61,380 | 5,524,200 |
| Lingonberry | 15,000 | 1,350,000 |
| Raspberry | 1,800 | 162,000 |
| Strawberry | 280 | 25,200 |
Aurora FAQ
How much does the Aurora mutation multiply crop value?
Aurora carries a ×90 multiplier, but inside the bracket formula 1 + Σ(multipliers) − N it actually contributes +89. On its own it gives a ×90 bracket; added to a Shocked + Celestial stack it takes you from ×219 to ×308.
How do you get the Aurora mutation?
Aurora comes from: Aurora Borealis event. It is a Weather mutation, ranked #14 of 45 overall and 2nd within its category.
Is Aurora worth farming?
Aurora sits at #14 of 45 with a ×90 multiplier, contributing +89 to the bracket. Rather than judging it alone, note that it feeds Cosmic (×240) — so holding it can be worth more than the multiplier suggests.
Can Aurora stack with other mutations?
Yes. Aurora stacks additively with other environmental mutations using 1 + Σ(multipliers) − N, but only one growth tier (Silver, Gold or Rainbow) can apply at a time. Note that Aurora can also be fused into Cosmic.