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This year the Royal Horticultural Society Chelsea Flower show features a ‘low-allergy’ garden put together by Dr Joanna Sheldon. The idea is to give people who suffer from hay fever some ideas of how to enjoy their outside space in the summer.

Gardener Andy Doughton, who cuts 'acres and acres' of grass in the summer (and is allergic to it) gets allergy tips from Dr Sheldon, who is also an immunologist at St George's Hospital.

(Image: A man mowing. Credit: Thinkstock)