JUST Stop Oil protesters get a soaking from a woman wielding a garden hose after targeting the Chelsea Flower Show.
The eco-zealots threw orange paint powder over plants, yesterday despite the event focusing on sustainability.
Police made three arrests.
The Royal Horticultural Society said the hose woman was not an employee.
Gareth Wilson, the award-winning landscaper behind the £300,000 RBC Brewin Dolphin Garden, offered to buy her a jug of Pimms.
He said: “Quite frankly, these people are absolute morons who have failed to do their homework.
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“They are working against their own cause. It is an act of vandalism and absolutely shameful what they have done.”
Designer Paul Hervey-Brookes said the paint had ruined plants which were due to be recycled and paving earmarked for a charity.
A RHS spokeswoman said: “This year there has been real excitement about RHS Chelsea championing sustainability and green ways to garden for the environment.
"We hope the focus can now go back to that.”