The Plantman’s Ice Garden
Sanctuary Gardens

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The Plantman’s Ice Garden

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Beneath the canopy of a birch woodland, the ice block dominates. To the foreground are blue Iris sibirica 'Tropic Night' and the white flowers of Brunnera macrophylla 'Betty Bowring'

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The Plantman’s Ice Garden

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The Plantman’s Ice Garden

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Beneath the canopy of a birch woodland, the ice block dominates. To the foreground are blue Iris sibirica 'Tropic Night' and the white flowers of Brunnera macrophylla 'Betty Bowring'

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The Plantman’s Ice Garden
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Since 1994, 28 trillion tonnes of ice have disappeared from the surface of the planet and all-summer ice is scheduled to disappear within the next 20 years. This permafrost holds around 1.5 million trillion tonnes of carbon.
Forests, plants and ice currently insulate the ground below, but more frequent fires, rising temperatures and higher rainfalls are stripping this layer of protection. As the ice melts, the enormous carbon bank of decomposed organic matter is released. The melting substrate often undermines tree roots giving rise to the appearance of ‘drunken forests’.
While melting permafrost offers an immediate threat, it also contains a historic botanical treasure chest. In 2012, Russian scientists discovered and successfully germinated a cache of Silene stenophylla seeds, thought to have been buried more than 30,000 years ago. It is hoped that this dormant seedbank might hold the genetic code to help develop sustainable crops, medicine and biofuel adapted to climate change.
The monolithic ice cube is a reminder of the climate perils facing our planet, while offering hope that the botanical bounty found within might ensure humankind’s onward survival.
Forests, plants and ice currently insulate the ground below, but more frequent fires, rising temperatures and higher rainfalls are stripping this layer of protection. As the ice melts, the enormous carbon bank of decomposed organic matter is released. The melting substrate often undermines tree roots giving rise to the appearance of ‘drunken forests’.
While melting permafrost offers an immediate threat, it also contains a historic botanical treasure chest. In 2012, Russian scientists discovered and successfully germinated a cache of Silene stenophylla seeds, thought to have been buried more than 30,000 years ago. It is hoped that this dormant seedbank might hold the genetic code to help develop sustainable crops, medicine and biofuel adapted to climate change.
The monolithic ice cube is a reminder of the climate perils facing our planet, while offering hope that the botanical bounty found within might ensure humankind’s onward survival.
All Show Gardens

Feature Gardens
BBC Studios Our Green Planet and RHS Bee Garden
BBC Studios Our Green Planet and RHS Bee Garden


Feature Gardens
BBC Studios Our Green Planet and RHS Bee Garden
BBC Studios Our Green Planet and RHS Bee Garden

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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.