One of my earliest childhood gardening memories was sowing nasturtium seeds. They are so easy to germinate, and the flowers are so cheerful. This classic plant is covered with a continuous stream of flowers throughout the summer. Whether you grow it up an obelisk or allow it to tumble over a bank or wall this is a perfect, fail-proof plant for any age and skill of gardener. The flowers, in shades of yellow, orange and red, can also be eaten is salads! Approximately 30 seeds.