It is thought that crops were first actively farmed in the Eastern Mediterranean, over 11,000 years ago.
Open pollinated crops allow plants to evolve and adapt to their environment, including pest and disease resistance.
Up to 80% of the seed we grow in this country, including organic seed, is grown elsewhere.
The largest seed in the world is from the coco de mer, a type of palm tree, and can weigh 18kg.
Conversely the smallest seed originate from an orchid and the dust like seed measures only 0.8 micrograms across.
Seed banks across the world store seed in specialist conditions to preserve them for the future.
The seed of a date palm found on an archaeological excavation in Israel, thought to be 2,000 years old, was successfully germinated and grown into a mature specimen.