Zen garden in Plants vs Zombies?

Answer 1

The Zen Garden is unlocked after you complete Adventure Mode. You can unlock plants such as the Snow Pea, Threepeater, Spikerock, Cattail, Doom-Shroom, Ice Shroom, or any other plant you find. When you first receive the Zen Garden, Crazy Dave gives you two Marigolds, in two different colours (6 in all).

Note: You will have more of a chance to get mushrooms in nighttime levels, peashooters in daytime levels, and cattails or lillypads in water levels. However, you can find any of these in any of the levels.

Note Note: Don't forget to complete Adventure Mode twice to fight the Yeti Zombie!

Answer 2

The zen garden in plants vs Zombies is a garden where you can grow mini pot plants that you can water and feed to grow it in to a bigger plants while you feed it it will spit out coins that you can collect and then when you grow it up to it's full growth you can sell it to Crazy Dave for tons of money. p.s. The more bigger you grow your plants the more money Crazy Dave gives if you sell it to him.