2x multiplier
Autumn Mutation
Doubles harvest value. Triggers during Autumn weather events.
Autumn stats
- Multiplier
- 2x
- Applied by
- Harvest
- Chance per plant
- 3.5%
- Gear Shop price
- $1B
- Robux price
- 70 Robux
- Multiplier rank
- 19 of 21
Evidence and source scope
- Primary structural source
- BARF Fandom: MutationsBARF Fandom: Gear Shop
- Source verification date
- July 27, 2026
- Record evidence status
- Not recorded per item
This identifies the dataset source scope, not a guarantee that every number is confirmed. Read the record status before using a value in a plan.
What Autumn is actually worth
One plant on the Outer Ring at level 1, with and without Autumn applied. Because the mutation multiplies a harvest the ring already multiplied, a 2x mutation is worth far more on an expensive crop than a cheap one.
| Seed | With mutation | Gain |
|---|---|---|
| Liberty LilyCelestial | $47.5M | +$23.8M |
| Admin StarrootExotic | $7.2M | +$3.6M |
| Buzzthorn BloomSecret | $684k | +$342k |
Values use the harvest formula: unit price × 1.25^(level − 1) × cash multiplier × mutation × ring × (1 + saw bonus / 7), calculated at level 1 with no cash multiplier and no saw bonus.
How to get Autumn
Autumn has two routes. It rolls for free during Harvest events at 3.5% per plant, or you can buy the spray outright for $1B (70 Robux) in the Gear Shop. Buying is worth it when you have a full farm of high-value crops ready to harvest and do not want to wait for the event.
Linked event
Autumn
This event activates roughly 15% of weather cycles, and each plant then has a 3.5% chance of taking the mutation.
See all events and oddsMutations near Autumn
Related guides
More references for planning around the Autumn mutation.
All mutations
Wet (1.35x) to Eclipse (12x). Trigger events, per-plant rates, and shop prices.
Spray tier list
Every mutation spray ranked by multiplier with cash prices.
Profit calculator
Drop any seed into the calculator and see its real income with ring, mutation, and saw bonus layered on.
Weather events
When mutations roll, how often each event fires, and the odds of a full farm landing one.
Gear shop prices
Every spray, fertilizer, and utility item with cash and Robux costs side by side.
Seed database
Every seed, every rarity, every unit price and grow time. Sortable and filterable.
Ring placement guide
Why Outer Ring (19x) is wasted on commons, and which seeds belong on Base, Middle, and Outer.
Beginner guide
Five milestones from the first lever pull to Outer Ring endgame. Follow in order.