Orange mayor Reg Kidd made the call after recent rain but will keep a cautious eye on the mature trees as the effects of the drought may take years to materialise.

"There are already signs of drought impact in factors like dieback at the edges of the tree branches and a lack of general vigour," he said.

"It may take several years to actually be very noticeable."

Council staff at Cook Park will be keeping a close eye on the trees for new growth as spring gets closer.

Cr Kidd added by using the slow-release driplines they hoped it helped the trees make it through the dry times.

"We are still on water restrictions and the pods have been removed," he said.

"If there are signs we need to start extra watering again, we'll do that."

Work is also expected to start soon on a new Conservation Management Plan for Cook Park.

Cr Kidd also said like any park that's been there for almost 150 years, it's important to continue work on succession planting.

"Whether it's because of the drought, or trees reaching the limits of their natural life, or storm damage, trees will die," he said.

"They will have to be replaced in line with long term plans that preserve what's important about Cook Park."

Ahead of National Tree Day on August 2, Cr Kidd added it is a great opportunity to reflect on the crucial role that trees play in the life of our community.

"We usually have community planting days to mark National Tree Day but because of the pandemic that's not happening this year," he said.

"We'll have more planting days later in the year.

"It would be great for families to think through the options of where would be good to plant a tree in their own yard."