Experts recommend that you use bubblers or drip irrigation systems that deliver the water very close to the young plants.

CNN: X-rated yards save the environment

The commission said all of the sites had received stocks of young ash plants from nurseries within the past five years.

BBC: Survey in forest

This year's displays heavily feature native British plants and the Royal Horticultural Society said it was hoping to inspire young people to start gardening.

BBC: Chelsea Flower Show visited by the Queen

The disease has caused widespread damage to ash tree populations in continental Europe and is particularly destructive to young plants.

BBC: Ash dieback: Government holds talk on potential threat

The nurseries are tent-like webs which adult females have built on water soldier plants to care for their young in.

BBC: Rare fen raft spiders breeding in Suffolk