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The Green Planet
How "Weeds" Grow in the Sidewalk
Some plants can survive anywhere, even the heart of the city. These "weeds", like the Ivy-Leaved Toadflax, can grow on walls and other shear surfaces without any soil. The plant grows and blooms towards the light to attract pollinators, but once the seedpods develop it will turn inwards seeking a dark crevice to grow in. Such cracks are all it needs to produce a new plant.
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Sir David Attenborough reveals how humans help plants, many of which face extinction.
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Sir David Attenborough explores desert plants with survival tactics.
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Sir David Attenborough reveals the surprising effects of the seasons on plant life.
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Sir David Attenborough discovers amazing water plants, some of which can count and hunt.
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Sir David Attenborough takes a plants-eye view of life in a rainforest.