Here is the full list of all 33 Voodoo Garden achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
click skull 10 times
collect 666 lizardtails
collect 2000 dragonflywings
collect 1234 snailhouses
own 1 000 000 gold
collect 3333 roots
free 3 spirits
click crocodile 30 times
reach voodoo level 20
sell 7 trees
collect 999 snaketeeth
collect 444 beenests
sell 5 shrubs
sacrifice 11 animals
plant 15 shrubs
expand garden 10 times
produce 1000 items
own 100 000 gold
scare 88 bats
plant 10 herbs
sell 3 herbs
reach voodoo level 10
collect 69 froglegs
own 10 000 gold
produce 100 items
collect 6666 mushrooms
erect 7 totems
expand garden 20 times
plant 20 trees
produce 10 000 items
produce 240 voodoo dolls
restart game
reach voodoo level 30