The Duchess of Cambridge paid this sweet tribute to Prince William - and we almost missed it

The Duchess of Cambridge is always vocal about her love of nature and the outdoors, and she proved it during a special appearance on Blue Peter.

Catherine joined forces with the TV show recently to launch a competition to get viewers to create a special sculpture to go in her 'Back to Nature' garden, created for the RHS.

To let viewers know about the competition, the Duchess made a one-off film alongside Blue Peter presenter Lindsey Russell, which saw her try her hand at pond dipping and den-building with children at the Westminster City Council’s Paddington Recreation Ground.

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Whilst there, the Duchess and the young kids also did a spot of planting - and when Catherine was working on hers, she paid a sweet tribute to her husband Prince William.

Hello! magazine spotted that she opted to plant a Dianthus Barbatus plant into a watering can, a pretty pink and purple flower.

And adorably, the Dianthus Barbatus is often referred to by its nickname, Sweet William - seemingly suggesting that Catherine made a specific choice to include her husband of eight years in the proceedings.

Blue Peter released a sweet video of the Duchess working alongside the children, which saw her admitting that pond dipping is 'right up my street'.

In an interview with Lindsey, she also revealed that her three children - Prince George, Princess Charlotte, and Prince Louis, are dragged outside to play whatever the weather.

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She laughed, “Rain or shine, they’re dragged outside. It’s great.

"It encourages creativity, confidence and even a short amount of time – 10 or 15 minutes – makes a huge difference to physical wellbeing but also to our mental wellbeing.”

We couldn't agree more, Catherine!

We recently saw the entire Cambridge clan out at the Trooping the Colour celebrations last weekend - where little Prince Louis made his royal debut in clothes previously worn by his uncle Prince Harry.

It's likely that we'll see Catherine, William and the children again at baby Archie's christening, which is thought to be taking place in the next few months.