"It's something I would never sell even if I got 10 million yen (USD 90,000)," he said.
"Of course I hate the thief who stole them, but I want to tell him or her: please pour water on them and please take care of them," Iimura said. "I would feel sad if they die."
Iimura reported to police last month that seven bonsai trees, worth more than seven million yen in total -- including a 400-year-old gnarled juniper -- had been stolen from his garden.
"I am filled with sadness and heartache," she wrote.
Iimura keeps some 3,000 miniature trees on display at the 5,000 square-metre (6,000 square-yard) garden so that visitors can appreciate bonsai art. Since the theft he has installed security cameras.
"You know, bonsai is nature in miniature. Looking at a bonsai tree is like walking into a deep mountain while staying at home," Iimura said.
Bonsai is a Asian art form of sculpting small trees.
Bonsai trees often appear as if shaped by wind or the weight of snow. Sculpting them requires a delicate technique of chiselling branches to twist and pull them into shape, all the while battling to keep the tree alive.
Exported Japanese bonsai trees have become a hit overseas. In 2018, Japan exported about 12 billion yen worth of trees, bonsai and potted flowers, up from 4.5 billion yen about a decade ago, according to data published by the agriculture ministry.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)