A Walsall park volunteer group's bid to overturn job losses at the facility is expected to be debated in Parliament this week.
Walsall Arboretum User Group said it has enlisted the help of Walsall South MP Valerie Vaz as they seek to force the council into a rethink over a proposed service restructure.
In April, Walsall Council announced it was reorganising its public health lifestyle contracts, sports & leisure development and clean and green teams to make almost £400,000 worth of savings - which changes due to come into effect on August 1.
Current posts will be removed and replaced with a new team employed from the pool of affected staff.
But the user group believes the changes will have a negative effect on what they describe as the jewel in the town's crown.
Valerie Vaz is now expected to raise the issue in the House of Commons tomorrow (Tuesday, June 4).
The group also handed in a 2,200 name petition to Walsall Council's cabinet last week which has triggered a debate that will be held at a meeting on July 15.
They are now encouraging as many people as possible to join them for a public demonstration ahead of that meeting next month.
Valerie Vaz said: "I will be presenting the petition in the House of Commons on behalf of my constituents to ask the Government to urge the council to consult my constituents about changes to Walsall Arboretum.
"I support my constituents’ petition to prevent the loss of the on-site posts of arboretum manager and events co-ordinator.
"I am concerned that the council have not consulted my constituents about these changes and any loss of these posts may be in breach of the terms and conditions of the Heritage Lottery funding.
"The council’s own study in 2018 confirmed that it is one of the most popular tourist attractions in the West Midlands.”
“I know my constituents visit the arboretum which improves their well-being and enables them to stay fit. The on-site management team will ensure that children and adults are safe while they enjoy the arboretum.”
In April, the council said it had a "contractual commitment" to the Heritage Lottery Fund to deliver a management and maintenance plan to keep the park at a high standard until 2035.
At the cabinet meeting, Walsall Council leader Mike Bird said that this was an officer decision but the petition meant all members would discuss the issue.
He said: "It is important that members have the actual facts on why it was done, what it will mean and to address the issue of what you want to achieve.
"We are not the enemies here, we are your friends so don't make us your enemies. We are on the same same side here.
"I value the work the user group does and we are all aware the arboretum is the jewel in the crown. It is an excellent facility."