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
produce 240 voodoo dolls
reach voodoo level 30
click crocodile 30 times
produce 10 000 items
collect 2000 dragonflywings
collect 1234 snailhouses
collect 666 lizardtails
collect 999 snaketeeth
free 3 spirits
plant 20 trees
sell 7 trees
sell 3 herbs
sell 5 shrubs
expand garden 20 times
collect 6666 mushrooms
sacrifice 11 animals
plant 15 shrubs
erect 7 totems
expand garden 10 times
own 1 000 000 gold
collect 3333 roots
reach voodoo level 20
plant 10 herbs
scare 88 bats
collect 444 beenests
produce 1000 items
collect 69 froglegs
own 10 000 gold
own 100 000 gold
produce 100 items
reach voodoo level 10
restart game