Since then no further plantings were made but at a council meeting of 17 March 1980, council resolved to adopt the landscape plan prepared on behalf of the trust as a basis for future development.
The first priority was to be the planting of the north eastern sector fronting the New England Highway and in 1981 a water main with irrigation outlets was laid throughout the eastern area.
Armidale Express, 2 August 1967, p.4. 24 Armidale Express, 4 October 1968, p.14. 25 Armidale Express, 10 July 1970, p.5.
A public meeting held on 27 May 1982 at the council chambers considered the development of the arboretum and the council meeting of 21 June resolved to form an advisory committee.
Members included a council representative, vice-chairman of council’s tree planting committee and representatives of the society for growing native plants, the former botanic garden trust, the Forestry Commission and the park’s superintendent.
The plan of development for the aboretum was formally adopted by council in August.
An arboretum awareness day was held on 1 August 1, Arbor Day and a large number of individuals and community organisations attended.
A further day was held on 7 August 1983.
Council unsuccessfully applied for a grant under the National Tree programme in 1983.
By January 1984 the Lions Club had erected a flag pole and fund raising schemes, awareness days and working bees were held.
Initially the arboretum committee submitted a modest proposal for preliminary work in the aquatic gardens as a Bicentennial project.
This plan was amplified to become the $266 000 Armidale Bicentennial Arboretum Plan which was launched by the N.S.W. Premier Mr Neville Wran, on 10 August 1985.
The arboretum was officially opened on 8 October 1988 by the vice-chairman of the N.S.W. Bicentennial Council, Thelma McCarthy AM.
By that stage the thirteen hectare site included aquatic gardens, waterfall, senses garden for the disabled, community wall constructed by members of the community, native gardens, exotic gardens, New England flora bed, walking tracks, lookout, picnic shelter and toilet facilities. The project involved service clubs, schools, business houses, individuals and the City Council.
The total cost of the project was financed by the N.S.W. Bicentennial Council ($200 000); council ($17 000) and community effort ($54 000).
The senses garden was totally funded and constructed by community groups including Armidale High School, Dumaresq Lions, Armidale Garden, Sandon County, Apex, Quota, and Rotary Clubs. The community wall was funded by the N.S.W. Arts Council and the public who donated bricks carved by community members. Council constructed the toilet block with special funding.
The aquatic garden, designed by John Wrigley, was funded by a major part of the bicentennial grant. The native gardens, designed by Mrs Maria Hitchcock were constructed in stages by students from The Armidale School and Technical and Further Education using an unemployment grant.
The lookout was funded and contructed by the Rotary Club as their major bicentennial project. The exotic gardens were designed by Mrs Marilyn Pidgeon with the bulbs being donated by the Leitch family.