Climate and Science is covered by the British Broadcasting Corporation.
The UK has seen record-breaking hot and dry weather this summer which has resulted in the growth of exotic plants.
Mediterranean and sub-tropical plants are thriving in recent years.
Traditional British garden varieties are not growing well outside.
Plants may be threatened by lack of water in the future.
Some more exotic plants will benefit from the warmer, drier summers predicted by the Royal Horticultural Society.
Scientists link human-caused climate change to the warming of our planet since the industrial revolution. According to the Met Office, the UK is warmer than the global average.
Harlow Carr in Harrogate has had a sub-tropical garden for the last three years.
Russell Watkins has worked at the Royal Horticulture Society for 17 years. He grew plants that lived for a long time in the UK.
He pointed to the huge tropical-looking foliage of the rice paper plant and said that a few years ago it wouldn't have lasted.
He says that hardy bananas, various dahlias, and some ginger are thriving in the long spells of sunny weather that we have had this year.
Mark McCarthy, head of the Met Office National Climate Information Centre, said that higher temperatures are being felt further north than before.
Chris has successfully grown figs and watermelons as a hobby. He's proud of his crop of Chinese dates, persimmons, and yuzu.
Climate change makes it easier to grow non-native varieties.
He tries to grow plants that don't need as much water because of the dry climate in East Anglia.
The growth of exotic fruits is boosted by the heat island effect where a city experiences much warmer temperatures than nearby rural areas.
James Wong is a botanist at the garden.
He thinks that some of the seeds are from discarded seeds that have sprouted.
During the "beast from the east" storm in 2018, the big London avocados took a low of -10)C.
diaspora communities have been trying to grow sub-tropical and exotic fruit and vegetables for a long time
Sweet potatoes, exotic squashes, and tomatillos can be found on a site in Haringey.
The co- founder of the group says warmer summers have boosted the growth of these vegetables.
Crops will be negatively impacted by a continuation of hot dry summers as all plants need water to grow and establish.
Chris Atkinson, a plant scientist from the Natural Resources Institute says that long summers may be welcomed in the UK and provide an exciting opportunity to grow exotic food crops.
Water shortages pose a problem to grow any plant.