Mystery Sprout

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Mystery Sprout in the Zen Garden

Mystery Sprout is a type of sprout that randomly turns into a plant the player may not have. The player can buy them from Crazy Dave's Twiddydinkies on the iOS versions of Plants vs. Zombies. In the shop they look like presents, but they have different colors than the regular presents. When the player purchases one, a plant automatically appears in the Zen Garden.

Types

Mystery Sprout

It randomly turns into a plant, so the chance of it turning into a plant the player does not have yet depends on how many plants are currently in their Zen Garden. It costs $7500 in Crazy Dave's Twiddydinkies.

Bronze Mystery Sprout

Has a 25% chance of turning into any plant the player does not have in their Zen Garden yet. It costs $15,000 in Crazy Dave's Twiddydinkies.

Silver Mystery Sprout

Has a 50% chance of turning into any plant the player does not have in their Zen Garden yet. It costs $30,000 in Crazy Dave's Twiddydinkies.

Gold Mystery Sprout

Has a 100% chance of turning into any plant the player does not have in their Zen Garden yet. It costs $50,000 in Crazy Dave's Twiddydinkies. However, you can get a plant that you already have with the Gold Mystery Sprout, by getting the Enlightened achievement. Then, if you attempt to get the Gold Mystery Sprout, you will get a plant you already have since you already have all the Zen Garden plants.

Mystery Sprout math

Because the chance of getting a plant the player does not have yet is random, the expected cost of getting a new plant depends on how many plants they currently have.

Number of
unique plants
Chance of
new plant
Expected cost
of new plant
Zero (0) 100% $7500
One (1) 97.44% $7697
Two (2) 94.87% $7905
Three (3) 92.31% $8125
Four (4) 89.74% $8357
Five (5) 87.18% $8603
Six (6) 84.62% $8864
Seven (7) 82.05% $9141
Eight (8) 79.49% $9435
Nine (9) 76.92% $9750
Ten (10) 74.36% $10,086
Eleven (11) 71.79% $10,446
Twelve (12) 69.23% $10,833
Thirteen (13) 66.67% $11,250
Fourteen (14) 64.10% $11,700
Fifteen (15) 61.54% $12,188
Sixteen (16) 58.97% $12,717
Seventeen (17) 56.41% $13,295
Eighteen (18) 53.85% $13,929
Nineteen (19) 51.28% $14,625
Twenty (20) 48.72% $15,395
Twenty-one (21) 46.15% $16,250
Twenty-two (22) 43.59% $17,206
Twenty-three (23) 41.03% $18,281
Twenty-four (24) 38.46% $19,500
Twenty-five (25) 35.90% $20,893
Twenty-six (26) 33.33% $22,500
Twenty-seven (27) 30.77% $24,375
Twenty-eight (28) 28.21% $26,591
Twenty-nine (29) 25.64% $29,250
Thirty (30) 23.08% $32,500
Thirty-one (31) 20.51% $36,563
Thirty-two (32) 17.95% $41,786
Thirty-three (33) 15.38% $48,750
Thirty-four (34) 12.82% $58,500
Thirty-five (35) 10.26% $73,125
Thirty-six (36) 7.69% $97,500
Thirty-seven (37) 5.13% $146,250
Thirty-eight (38) 2.56% $292,500
Thirty-nine (39) 0% N/A

Bronze Mystery Sprout math

The expected cost of obtaining a plant the player does not have yet is $60,000.

Silver Mystery Sprout math

The expected cost of obtaining a plant the player does not have yet is $60,000.

Gold Mystery Sprout math

The expected cost of obtaining a plant the player does not have yet is $50,000.

In other languages

Please note that only official translations are used.

Language Name Description
United States of America English Mystery Sprout
Traditional Chinese 神秘的花苗

Please note that only official translations are used.

Language Name Description
United States of America English Bronze Mystery Sprout
Traditional Chinese 神秘的青銅花苗

Please note that only official translations are used.

Language Name Description
United States of America English Silver Mystery Sprout
Traditional Chinese 神秘的白銀花苗

Please note that only official translations are used.

Language Name Description
United States of America English Gold Mystery Sprout
Traditional Chinese 神秘的黃金花苗

Trivia

  • If the player has already obtained the Enlightened achievement, even the Gold Mystery Sprout will grow into a plant the player already owns from the course of logic, as there are no plants the player does not own.
  • It is possible to get Marigold from the Mystery Sprouts, even though Marigold has her own sprout.