At the "Hiroshima: our people's experiences" event at The Globe Theatre Sunday night, Mayor Grant Smith unveiled plans for the Peace Tree Reserve.
Drainage work was done earlier this year to prepare for the transformation of the reserve, which will showcase the important relationship between New Zealand and Japan.
Parks and reserves manager Kathy Dever-Tod says at one end of the reserve New Zealand natives will be on show, and then a boardwalk will connect up to a Japanese themed garden.
"Different Japanese-style plants will be on show surrounded by a pebble pathway.
"There'll be small stones which face large rocks to symbolise good luck and prosperity.
"There will also be Yukimi-gata lanterns to provide light to the peace tree cutting which will sit in the Japanese garden."
She says the reserve will have a natural theme to it, with wooden picnic tables, swing seat, playground and swings.
The fence will have seven horizontal palings which symbolise good luck.
Work on the reserve will begin later this year.