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