The Chelsea Flower Show began its five day run at the Royal Hospital in Chelsea with a special preview day for members and the press.
There are around 600 exhibitors this year including designer Kate Frey from California whose garden is also a winery and vineyard.
Among the many guests Queen Silvia and King Carl XVI Gustaf of Sweden could be seen sampling the floral delights.
Lawrence Llewelyn-Bowen launched the Children's Society's Lust For Life garden with children dressed up as celebrity gardeners and even the Queen.
Charlie Dimmock is one of many celebrity faces at this year's show.
Shoe designer Patrick Cox gets ready to open the Amnesty International "Garden for Human Rights".
Actress Joanna Lumley had a fuchsia named after her, which will be sold to make money for Barnardo's children's home.
Visitors shelter under umbrellas in one of the 20 show gardens all competing for a coveted Royal Horticultural Society medal.
It's expected that nearly 160,000 visitors will explore the show over the next few days.