While Kate Middleton spent her day at King Henry’s Walk Garden in London on Tuesday, Jan. 15, her two eldest children, Prince George and Princess Charlotte, were sadly stuck indoors at school. But the Duchess of Cambridge didn’t fail to acknowledge that her royal kiddos would’ve loved to join her at the special event as she met with volunteers from her community to hear about the benefits of urban green spaces.

During her visit, the 37-year-old took part in a winter planting workshop, helped build birdhouses, and participated in pizza-making with a group of cute kids in the garden’s kitchen. And when a few of the children asked why George, 5, and Charlotte, 3, didn’t join their famous mom at the event, Kate was quick to fill them in.

“They would love to come and do this with you. They’ll be very sad that I’ve been out here making pizzas with all you and they haven’t been,” the brunette beauty said of her kids. “They’re in school. They’re in a classroom. George is at a school called Thomas’s [Battersea]. He’s learning about space.”

Kate even pointed out that her children would’ve especially loved spending the day outdoors — despite London’s chilly winter weather! — at the community garden event. “That’s where George and Charlotte would love to be is learning outside of the classroom,” she said. “Not inside. It’s still fun inside, but it’s much better outside.”

Prior to the Duchess’s arrival at the garden, Kensington Palace officially announced that Kate will also be showcasing the Back to Nature Garden at this year’s upcoming Chelsea Flower Show. The project that Kate is helping to design and build “seeks to recapture for adults the sense of wonder and magic that they enjoyed as children, in addition to kindling excitement and a passion for nature in future generations,” the palace wrote, adding that the garden will also exemplify Kate’s passion for improving mental and physical health.

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Kate, who “is a strong advocate for the positive impact that nature and the environment can have on childhood development,” isn’t the royal who feels this way. Throughout his entire royal career, Prince Charles has additionally worked to raise awareness of environmental preservation.

In fact, the Prince of Wales opened up to The Telegraph in early November 2018 about the importance of conserving the planet. “I am about to have another grandchild actually,” he said of the upcoming spring arrival of Meghan Markle and Prince Harry‘s first royal baby. “I suspect quite a few of you may too have grandchildren or will do soon. It does seem to me insanity if we are going to bequeath this completely polluted, damaged, and destroyed world to them.” He added, “All grandchildren deserve a better future.” Charles must be so proud of Kate’s similar passion for nature!

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