Monday, 18 May 2026 – Sunday, 24 May 2026
Free Admission

London’s largest free flower festival returns this spring with a theme that’s truly cosmic: ‘Out of this World’.

Chelsea will be transformed into an intergalactic wonderland as more than 140 shops, restaurants, pubs and hotels unveil spectacular floral displays inspired by the allure of space travel, astrology and spiritual symbolism.

Produced by Cadogan in collaboration with the Royal Horticultural Society (RHS), Chelsea in Bloom extends the Chelsea Flower Show out into the local neighbourhood. In addition to the participating businesses, Cadogan have once again commissioned six large-scale floral art installations in key locations that promise to be more extraordinary than ever – including a spectacular Zodiac-inspired constellation at Sloane Square; a UFO hovering over Pavilion Road; lunar-landscape at Duke of York Square and mythical 4m dragon and Pegasus on Sloane Street. On the King’s Road, an enormous floral globe seen from space honours David Attenborough’s 100^th birthday in May.

Complimentary walking tours and rickshaw rides will be available once more, through visiting the Chelsea in Bloom Information Point on Sloane Square.

Gold, Silver, Bronze and Merit awards will be granted to participants by RHS and lifestyle judges, alongside the top awards for ‘Best Floral Display’, ‘Highly Commended’ and the ‘Innovation Award’. Winners will be announced on Tuesday 19^th May.

Voting for the ‘People’s Champion’ is decided by the public and online voting will open from 5pm on Monday 18^th May and close at midnight on Thursday 21^st May 2026. Everyone is encouraged to vote!

Visit chelseainbloom.co.uk for further information.