Full list of all 50 Viva Piñata achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox 360.
Grown 5 plants to maturity
Made a Custom Label
Named a Piñata
Become Master Romancer for 20 species
Employed a Weedling
Player has 100,000 chocolate coins
Full bonus growth for 25 plants
Made 20 variant Piñatas
Played the game for 50 hours (real time)
Evolved 8 species
Player has reached Level 50
Player has distracted Dastardos with the Crowla
Player has distracted Dastardos with the Sherbat
Player has healed a Piñata with the Chewnicorn's power
Player has attained full bonus growth for a plant using the Cocoadile tears
One Piñata worth 10,000 chocolate coins
Player has used the Mallowolf to scare off Ruffians
Player has made fertilizer with the Taffly
Full bonus growth for 5 plants
Player has hatched an egg using the Cluckles
Employed a Diggerling
Player has 25,000 chocolate coins
Garden worth 100,000 chocolate coins
Made 50 species resident
Cross romancing a Swanana and a Rashberry
One Piñata worth 5,000 chocolate coins
Made 5 variant Piñatas
Evolved 2 species
Successfully completed 20 Factory requests
Tower of Sour has 6 pieces
Named a Helper
Employed a Watchling
All the Shovel Handle upgrades
Player has been brought a Romance Sweet by a Macaracoon
Grown 25 plants to maturity
All the Watering Can upgrades
Player turned the Beggar into a Trader
Become Master Romancer for 5 species
Garden size at maximum
Played the game for 10 hours (real time)
Successfully completed 5 Factory requests
Garden worth 25,000 chocolate coins
Tower of Sour has 2 pieces
All the Shovel Head upgrades
Employed a Gatherling
Garden size increased once
Employed a Sprinkling
Collected produce from a Buzzlegum, Moozipan or Goobaa
Player has reached Level 10
Made 5 species resident