National Tree Week was launched in 1975 to maintain the tree planting momentum to replace the losses resulting from Dutch elm disease, which had already wiped out more than 20 million trees.
Tree Council director-general Pauline Buchanan-Black said: "Anyone with land of their own, whether a garden, woodland or field, can make a difference to their view by adding a tree. This year, though, the campaign carries particular significance as we look for ways to minimise the impact of ash dieback and carefully consider what to plant.
"Rising concern about tree diseases has also reminded us of the importance of checking not only where the seed of their tree started life, but also where it was germinated and grown. Not since Plant A Tree in ’73 has there been the same urgency to safeguard a view for the future."
Tree Council chair Alasdair Douglas added: "It is almost exactly 40 years since secretary of state for the environment Peter Walker stood up in the House of Commons and announced that the following year was to be designated National Tree Planting Year. This was the Government initiative to encourage the planting of new trees to replace those millions killed by Dutch Elm Disease.
"The Tree Council was formed from that initiative and has been running National Tree Week ever since. We couldn’t have foreseen that we’d be faced with the losses from a tree disease of similar epidemic proportions just as we go in to National Tree Week but this seems a timely moment to ask the public to think carefully about what will happen to their view and what they will do to restore it for future generations."