The couple took turns using a shovel to plant the Hemlock tree The Duke and Duchess of Cambridge have carried out their first official tree-planting ceremony as husband and wife.
They planted a Canadian hemlock in the grounds of Government House, in Ottawa, Canada, at the start of the third day of their first official overseas tour.
The royal couple later joined a reception for Canadian servicemen, war veterans and their families.
They are due to fly to Montreal, in the French-speaking province of Quebec, where small protests are expected.
The royal couple each held a shovel as they planted the hemlock, an evergreen tree known for its longevity.
They chatted with Canadian newlyweds who share their wedding day of 29 April, and couples celebrating their 40th, 50th, 60th and 70th wedding anniversaries.
The duchess wore a grey Kensington dress by Catherine Walker, the same designer chosen by her mother Carole for her daughter’s wedding in April.
Prince Charles and Princess Diana, and the Queen, all planted trees on previous visits to Canada in a tradition spanning more than 70 years.
After the tree-planting ceremony the couple made a private visit to the unknown warrior memorial at the Canadian War Museum.
Later they will move to Montreal where they will visit a children’s hospital and a cookery school, before sailing up the St Lawrence River to Quebec City on the Canadian frigate HMCS Montreal.
On Friday, the duke and duchess were guests of honour as they celebrated Canada Day in the capital Ottowa.
30 June: Arrival in Ottawa1 July: Canada Day celebrations on Parliament Hill in Ottawa2 July: Visit to a cookery school in Montreal3 July: Freedom of the city ceremony in Quebec City4 July: Prince William takes part in Sea King helicopter training session on Prince Edward Island5 July: Visit to Yellowknife in the Northwest Territories7 July: Arrival in Calgary8 July: Attend Calgary Stampede. Leave for USHighlights of the royal tour
At a citizenship ceremony the royal couple presented national flags to 25 new Canadians who had come from 12 different countries.
About 100,000 people joined events on Parliament Hill as part of a national holiday to mark the country’s 144th birthday.
The duchess wore a purple dress by Issa – with a maple leaf brooch loaned to her by the Queen – as they watched a lavish fireworks display.
On Sunday, the couple will receive the freedom of Quebec city in a special ceremony.
The couple are visiting seven Canadian cities in eight days in their first official overseas tour.
Also on the itinerary are Prince Edward Island, the Northwest Territories, Alberta and Calgary.
The cost of the visit to the Canadian government, not including security, is estimated to be 1.4 million Canadian dollars (£958,580).
The duke and duchess will travel to the US state of California for two days from 8 July, attending a black-tie Bafta reception and dinner in Los Angeles on 9 July. Prince William is Bafta’s president.
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