Vegetable seeds
Vegetables grow larger and larger the longer you leave them in the ground, although after 9 days the vegetable won’t grow any more. The larger a vegetable is the more valuable it is, but leaving them to grow for too long can be risky because the longer you wait the greater the chance you might find the vegetable has rotted away by the time you pull it up! If you can create a steady flow of large vegetables you may be able to turn a tidy profit, or perhaps you’d just like to share lots of vegetables with your friends? Perhaps you could arrange a competition to see who can grow the largest vegetable? It’s really up to you!