They are ever-reliable, unshowy and, much to the chagrin of their dedicated fans, rather unfashionable. But the geranium is set for a major comeback, it seems.

Prince Harry and Meghan Markle have selected white Mayflower and Dusky Cranesbill geraniums, grown in the Royal Parks nursery, to join the floral displays at their wedding on Saturday.

Even the gardener in charge of growing the plants, along with countless others, does not know how they will end up on display after months of hard work in London's Hyde Park.

Nursery manager Mike Jones said he does not know where floral designer Philippa Craddock will use his flowers, so will be trying to spot them as he watches the wedding on TV.

"We don't know where they're going to be, so we'll be eagerly looking out ourselves to see where they are," Mr Jones said.