Greening works are set to begin in public areas adjacent to the Sheung Wan Stormwater Pumping Station, Director of Drainage Services Lau Ka-keung says.

The $200 million pumping station began operation earlier this month to alleviate flooding due to the back-flow of sea water in the area.

Speaking at a tree planting activity at the station today Mr Lau said there will be a 1,300-square-metre pet garden and a 200-metre long promenade in the 5,700-square-metre public area adjacent to the pumping station.

The area will open to public in June.

"The landscaping works for the adjacent public areas and the promenade will include the planting of 110 trees and more than 20,000 shrubs," said Mr Lau. "Most of the trees are local species including the spider tree, Chinese banyan, Cuban bast, paper-bark tree, white champaca, plumeria rubra and portia Tree.