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