Nasturtiums originate in South America where they were used to prevent scurvy and a nutritious supplement and flavour in salads.
In the 17th century England it was called Indian cress. It has a flavour similar to watercress. It is recognized as a source of vitamin C and antibiotics.
Nasturtiums add a bright sunny show in spring and summer. They are perennial in warmer areas and re-seed themselves. They are often the best choice as a companion plant around fruit trees, cucurbits, brassicas, beans, tomatoes and potatoes.
When you buy Nasturtium seeds in Australia you can choose from many colour variations or a mix of many colours from the online ordering at Eden Seeds.