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