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Mystery Sprout

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MysterySprout
MysterySprout

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 his or her 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 his/her 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 his/her 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 his/her Zen Garden yet. It costs $50,000 in Crazy Dave's Twiddydinkies.

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 he or she currently has.

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.

Trivia

  • If the player has already obtained the Enlightened achievement, they will grow into a plant the player already owns, as there are no plants the player does not own.

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