I have finish all the levels twice, I almost finished all the achievements. How come I can't get any other plants for my Zen Garden other than the white plants? I can't get a snail, chocolate, under water Zen Garden or the Mushroom Zen garden.
I have done everything on this game that can make me achieve this.
Please help. One of the achievements are to collect all the Zen Garden plants in all your Zen Gardens. I can't achieve this achievement due to above mentioned issue. It's not life or death, but I get just a little obsessive.