5x multiplier
Rainbow Mutation
Premium 5x multiplier. Galaxy events are rare (4%) so most players buy the spray at $1T.
Rainbow stats
- Multiplier
- 5x
- Applied by
- Galaxy
- Chance per plant
- 1%
- Gear Shop price
- $1T
- Robux price
- 279 Robux
- Multiplier rank
- 11 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 Rainbow is actually worth
One plant on the Outer Ring at level 1, with and without Rainbow applied. Because the mutation multiplies a harvest the ring already multiplied, a 5x mutation is worth far more on an expensive crop than a cheap one.
| Seed | With mutation | Gain |
|---|---|---|
| Liberty LilyCelestial | $119M | +$95M |
| Admin StarrootExotic | $18.1M | +$14.4M |
| Buzzthorn BloomSecret | $1.7M | +$1.4M |
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 Rainbow
Rainbow has two routes. It rolls for free during Galaxy events at 1% per plant, or you can buy the spray outright for $1T (279 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
Galaxy
This event activates roughly 4% of weather cycles, and each plant then has a 1% chance of taking the mutation.
See all events and oddsMutations near Rainbow
Related guides
More references for planning around the Rainbow 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.