Palmerston North City Council will be removing some of the large trees surrounding the entrance along with any unwanted vegetation before replanting. Any specimen trees in good condition will be retained.
Leisure assets officer Brian Way says up until 1939 the Park was used as a quarry and the ground is very stony and hard to grow plants in.
"We aim to open up visibility into the Park to improve safety as well as removing the tripping hazard created by the tree roots on the Main St footpath," Brian said. "Earlier work included a drip irrigation system to help establish new plantings, and we're planting for seasonal variety and colour by using both natives and ornamentals."
The work, which was started in 2010, will run through to 2019. Each year approximately $40,000 is spent on updating and improving existing infrastructure like retaining walls and walkways and adding features such as the lookout, a new footbridge through to new plants.
The corner entrance will also feature a sculpture made from telegraph poles and a new set of steps down into the Park built using sleepers.
"We wanted to use materials evocative of the railway quarry history of the Park for both the sculptures and the steps," Brian said.
Entrance improvement work is expected to be completed by June. Next year work will begin on the redevelopment of the path along the Main Street bank which has been closed for several years due to safety issues.