By graham.newton@granthamjournal.co.uk (Graham Newton) An oak tree has been planted near Grantham to mark National Tree Week. The tree was planted yesterday (Thursday) at Londonthorpe Woods, which is owned by the Grantham-based Woodland Trust. CEO of the Woodland Trust, Darren Moorcroft, and the Mayor of Grantham, Councillor Graham Jeal, planted the tree. The planting was to coincide with, and celebrate, National Tree Week, an initiative by the Tree Council which runs from November 26 to December 4, highlighting the start of tree planting season. Coun Jeal said: “After planting a tree in Londo…