Establishment of Tsukuba Botanical Garden.
Complement of Research and Management Building in the Garden.
Complement of Useful Plants House.
Complement of Orientation Building.
Opening of Tsukuba Botanical Garden for the public.
Opening of Savannah House.
Opening of Workshop and Exhibition Bulling.
Opening of Tropical Rainforest House.
Transfer of Department of Botany to Tsukuba District.
Garden's research organization is merged with the Botany Department.
25th anniversary of the Garden, and opening of Human and Biodiversity Area.