Buckland says he wants to encourage as many garden retailers as possible to support the charity, which funds children's hospice gardens, and he is asking them to organise a Greenfingers Week at their centres. The garden centre that raises the most money during its fundraising week this year will win a visit from Buckland next year.
The campaign involves a week of team-building fundraising involving staff, suppliers and customers. The timing of the week is decided by the garden centre. Contact firstname.lastname@example.org for downloadable materials.
Buckland said: "This is such a fantastic cause and I hope that loads of garden centres will get behind it and organise a Greenfingers Week as soon as possible to enable more Greenfingers gardens to be built in children's hospices."
Greenfingers chairman Richard Jackson said: "Children together with their families love our gardens because they make a real difference to the quality of their lives and the time they spend together either at play or in calm privacy surrounded by nature. We are delighted that Toby is on board and supporting what we are doing to help more children in hospices."
Buckland will open the new £2m development at Frosts Garden Centre in Woburn Sands on 18 April.
The presenter will be meeting customers, signing copies of his new book and undertaking two planting demonstrations based on grow-your-own.
On 19 April, Willie Harcourt-Cooze, of Channel 4's Willie's Wonky Chocolate Factory, will arrive from Devon. He will be doing cooking demonstrations and signing copies of his new book, as well as taking time out to meet customers.