Sprout

Sprouts are plants growth. They can include stems, flowering stems with flower buds and leaves.

In Plants vs. Zombies, they are just available for the Zen Garden, and they can be found on any level after the Zen Garden is unlocked. The plant that is found can variate depending on the area you found it. For example: If you found it at a Fog Level, it could be any plant that is unlocked during Fog stages. After being placed in the Zen Garden, they will ask for watering about 4 to 8 times and then they'll ask later for Fertilizer and after you feed them a plant will grow and will give you gold coins (if partially grown) or diamonds (if fully grown).

Marigold Sprout
The Marigold Sprout is the first stage of a Zen Garden Marigold. Unlike other Zen Garden plants, they start out as tiny flowers, while other plants are just green shoots. Crazy Dave gives you two of them, along with the Zen Garden, when you obtain the Watering Can on level 5-4 of Adventure Mode, and you can buy three of them at his shop every day for $2500 each. He will restock them daily at midnight. The Marigolds are much cheaper. They yield diamonds when fully grown, whereas the plants found while in levels, yield 2 diamonds. Once fully grown, they can be sold for $3000, making them a okay way to make Money (grow them to full size and sell them to get about a $1200 profit. Unfortunately, it takes time to grow them to full size and you can only buy 3 a day. Also, selling other plants yields a much higher profit). Also, it's a good, cheap way to obtain all Marigold colors.

Trivia

 * While the game is loading, four of these sprouts come out of the loading bar, before a zombie's head.
 * The Marigold is the only plant that you can buy in the Zen Garden.
 * In the DS version, all sprouts are Marigold Sprouts.
 * They're the only known sprouts that have different Color variations when fully grown.
 * It is the cheapest plant to sell.
 * It can also be purchased as a Sprout.
 * However, this can't be collected for the Zen Garden.