Birch, oak and cherry trees have been planted at Willows Farm as part of a scheme run by the Woodland Trust.
Visitors planted 60 trees to help the trust reach its goal of planning six million trees during the Queen’s Diamond Jubilee year.
Lewis and Joseph Oakman, aged eight and six, were two of the volunteers to help plant the trees at the London Colney farm on Saturday, November 17.
Their mother Rachael Oakman said: "Lewis and Joseph have really enjoyed planting the tree and the family feel genuinely proud to be invited to take part in the tree planting.
"The boys will watch their oak growing over the coming years and one day will feel the same sense of pride when they recall to their children and grandchildren the day they planted it."
The trees will now grow to form a small-scale woodland along the access route to the farm from Coursers Road.
Andrew Wolfe, a farmer at Willows, said: "We’re delighted to be able to support the Woodland Trust’s Jubilee Woods Project.
"Our members turned out in force and we’re extremely grateful to them for their enthusiastic response to what is a fantastic community initiative.
"We’re hoping that residents and wildlife alike will enjoy the jubilee woodlands at Willows for years to come."