What is the function of that white flower in Plants vs Zombies?

It's called marigold. You can make gold and silver coins.

Marigold is a plant prop in Plants vs Zombies. Look at her petite appearance, it's actually very useful! Marigold can give you silver and gold coins, and the price is not high. At the checkpoint, you can try to plant more marigolds, which will be very useful.

brief introduction

All frozen production only shows that after the current game (actually the remaining time of frozen production) enters the next game, the remaining time of marigold production is completely thawed, and the previous data is used to resume production. The marigold after the last wave of each game follows the above three laws.

In the leisure garden mode, after spraying pesticides or playing music on marigold, gold coins or silver coins will be produced every once in a while, provided that you have enough patience to stay in the leisure garden. Sure, a snail can help you pick it up (snails can be bought in Dave's shop).