Urban Hong Kong is predominantly covered by artificial surfaces with a limited distribution of trees. Many trees previously planted in the older parts of the city were damaged and felled as redevelopments squeezed out the growth space. For the future, trees in the existing built-up areas and periurban woodlands should be preserved. The opportunity to introduce greenery into urban renewal and new development areas should not be overlooked. Through urban planning, the required land for tree growth could be actively earmarked and existing trees sympathetically accommodated by judicial land use zoning. Copyright © 1987 Published by Elsevier Ltd.