
MythicalS+Trending
Black Swan — Value & Calculator
Dark Plume: Boosts mutation odds and pet trade demand.
Tokens @ 1kg
112,500
Hatch wt
4.5 kg
Max wt
114 kg
Tier
S+
Verification & Sources
- Verified by
- GAG Calc Team
- Last update
- Black Swan data source
- Verified datapoints
- Cross-source verified
- 3 sources
- Formula accuracy
- ±2%
- Methodology
- Read
Calculate Black Swan value

Dark Plume: Boosts mutation odds and pet trade demand.
Trade value scales with weight only — community calculators (game.guide, tradekitsune, growagardencalculator) all ignore age.
Auto-fill weight from age (optional)
1.00×
Trade Tokens
112,500
@ 4.50 kg
Datapoints (verified)
Black Swan tokens at key weights
No mutation, no demand bonus. Use the calculator above for custom inputs.
At hatch
112,500
tokens
4.5 kg · just hatched
Mid-weight
484,091
tokens
~59.3 kg · typical reference
At max
10,000,000
tokens
114 kg · fully grown
9 datapoints cross-verified from community trade data (game.guide, growagardencalculator, tradekitsune). Values between datapoints use simple linear interpolation (matches industry standard). See methodology.
Black Swan value-by-weight curve
9 datapoints · linear interpolation. Markers show exact value at each weight.
Value curve Verified datapoint Hatch weight
Recent Black Swan updates
value$3.2M→ $3.5M
+9%tierS→ S+
value$3.1M→ $3.2M
+3%value$3.4M→ $3.1M
-8%Full changelog: /changelog
Black Swan tokens by mutation (weight 81.1 kg)
| Mutation | Mult | Mutation Machine % | Tokens | Gain vs none |
|---|---|---|---|---|
| None (baseline) | 1× | — | 3,115,000 | — |
| Ascended | 5× | 0.32% | 15,575,000 | +12,460,000 |
| Rainbow | 2.5× | 3.22% | 7,787,500 | +4,672,500 |
| Radiant | 1.6× | 3.22% | 4,984,000 | +1,869,000 |
| Shocked | 1.6× | 3.22% | 4,984,000 | +1,869,000 |
| Golden | 1.5× | 6.43% | 4,672,500 | +1,557,500 |
| Tiny | 1.4× | 6.43% | 4,361,000 | +1,246,000 |
| Mega | 1.4× | 6.43% | 4,361,000 | +1,246,000 |
| Inverted | 1.3× | 16.08% | 4,049,500 | +934,500 |
| IronSkin | 1.25× | 3.22% | 3,893,750 | +778,750 |
| Shiny | 1.15× | 32.15% | 3,582,250 | +467,250 |
| Windy | 1.1× | 9.65% | 3,426,500 | +311,500 |
| Frozen | 1.1× | 9.65% | 3,426,500 | +311,500 |
💡 Best mutation = Ascended (5×) but only 0.32% from Mutation Machine. Rainbow (2.5×, 3.22%) often the better practical target.
Black Swan weight by age
Predicted weight (kg) at each age milestone, from hatch weight 4.5 kg.
| Age | Weight | Multiplier |
|---|---|---|
| Age 1 | 4.50 kg | ×1.00 |
| Age 5 | 6.14 kg | ×1.36 |
| Age 10 | 8.18 kg | ×1.82 |
| Age 25 | 14.32 kg | ×3.18 |
| Age 50 | 24.55 kg | ×5.45 |
| Age 75 | 34.77 kg | ×7.73 |
| Age 100 | 45.00 kg | ×10.00 |
| Age 125 | 55.23 kg | ×12.27 |
How to get Black Swan
Black Swan comes from Pet Shop.
To maximize your odds: stack hatch helpers (use the egg hatch calculator), then level your pet with XP planner.
Trading Black Swan
Always check the WFL Calculator before trading. Pet trade value is sensitive to weight, age and mutation — a fresh-hatched Black Swan is worth far less than a max-age, Rainbow-mutated one.
FAQ
What is Black Swan in Grow a Garden?
Black Swan is a Mythical-tier pet from Pet Shop. Its ability "Dark Plume" — Boosts mutation odds and pet trade demand.
What is Black Swan's base trade value?
Around 112,500 Trade Tokens at hatch weight (4.5 kg), no mutation. Heavier pets fetch much more — up to 10,000,000 tokens at max weight (114 kg).
How do I get Black Swan?
Source: Pet Shop.
What is Black Swan's max weight?
114 kg.
Related pets & alternatives
Similar Mythical pets
Step up to Divine
Cheaper alternatives (Legendary)
Sources: Black Swan data is cross-verified against the Grow a Garden Fandom Wiki, community trade submissions sent to [email protected], and in-game testing by the GAG Calc team. See our methodology for the verification pipeline.