Continental Outdoor Media (Namibia) donated 20 Olea Africana (African Olive) trees to support the City of Windhoek's efforts to plant 2500 trees for National Arbor Day on 14 October 2011. This amounted to almost 10 times as many trees than planted in the previous year. Eleanor Grassow and Martha Mahnke from Continental Outdoor represented the company at the official Arbour Day event in Cimbebasia.
City of Windhoek Councillor, Mr. Boas Ekandjo, spoke on behalf of the City of Windhoek Mayor, Mrs. Elaine Trepper, at the Cimbebasia celebrations, mentioning that the occasion captures the imagination of people who recognise the need for raising awareness of the value of trees. He further added that "trees are the source of building material, food, medicine, science and beauty."
Namibia first celebrated Arbor Day in 1991. The national Arbor Day usually takes place every second Friday in October. A national tree chosen as the Tree of the Year is planted, and tree planting is promoted country wide.