Britain's rich horticultural history is being lost. More and more front and back gardens are paved over - for development, for parking spaces, or because families don't have the time or inclination to manage these spaces. The trend for easy-to-maintain lawns, patios and paving has also led to a decline in traditional gardens full of flowers, plants and trees to the extent that some of our most iconic flora and fauna have all but disappeared. Step forward the BBC's most-loved gardening experts, who are determined to turn us back into a green-fingered nation once again.

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Documentary