Zea mays is also commonly known as maize, corn or sweet corn. It is a large annual vegetable that needs lots of water, added plant food and direct sun. Starch in sweet corn is converted into sugar more readily while the starch in maize will stay. These plants require plenty of space in the vegetable garden. They will quickly grow about 2 meters high! What makes them attractive for a garden is the varying colours of the kernels that can be yellow, white or both of these colours on the same cob. Interesting pearly and colourful variations are also available!