But he received an "aggressive letter" from Wigan Council that ordered him to pack his tools and leave them in the hands of professionals. If he did not, they threatened to report him to the police for criminal damage.
But the defiant Mr. Baines rejected the demand and insisted that it will continue despite the pressure of the council to stop his good work.
Sir Baines, who works full-time as an NHS caregiver, said: "I disliked the tone of the letter, it's so aggressive and out of place.
"All I'm doing is transforming a park from a place that was old, decrepit and covered by a place where families and children play.
"I do not intend to stop doing what I'm doing, if I do, then the park will be what it was before and all my work will be lost." It would be a tragedy. "
And hundreds of local residents have come to support Mr. Baines by coming forward for the "working groups" Rayner Park in Hindley, Greater Manchester.
The council said its main concern is the Japanese Japanese knot cut by Mr. Baines, a fast-growing plant that is notorious for breaking asphalt, blocking drains and undermining the foundations.
Officials said the plant should be discarded by professionals with "adequate security measures", unlike an amateur like Mr. Baines.
In addition to threatening police action, the letter also indicates that the council will seek a court order prohibiting it from the park if he continues to pay attention to it.
Despite the position of the councils, Mr. Baines has offered a compromise.
He said: "In fact, I want you to start helping me by taking away some of the things I cleared." The work I've done in the park would have cost the council tens of thousands of pounds.
"I have agreed to stop touching the Japanese knot, but I want to remove what I have already cut and also to train me on how to handle it properly."
A spokesman for the Wigan Council said: "We have been informed that unauthorized works are being carried out, including the felling of trees and the vegetation of Japanese knuckles.
"Not only is it a criminal offense to interfere with the Japanese knot in this way, but these particular plants can damage the environment and must be eliminated by a registered waste carrier.
"In addition, all work in our open spaces must be carried out with adequate security measures in place."