Born in Baltimore and raised in Hunt Valley, he attended the Boys' Latin School and Baltimore County public schools.
Nearly 30 years ago, he and Sue Bloodgood, who would become his wife, founded Happy Hollow Nursery in Cockeysville. They cultivated and sold numerous varieties of day lilies and hostas, among other perennials.
"He dug the place out and worked in the greenhouse at first, then he began painting nature," his wife said.
She said her husband was a self-taught artist who enjoyed reading fantasy fiction. He began making small pieces of garden statuary and later made concrete models of hosta leaves and other shade-loving perennials, which he then painted. He developed a following and soon his work was featured in national magazines.
"Many garden enthusiasts collected his work," said a friend, Stiles T. Colwill, who owns an interior decorating business. "He was a lovely and talented man."
Mr. Colwill said he bought some of Mr. Reuwer's leaves and used them in design projects. He said his clients liked the concrete leaves so much they began buying them on their own.
Mr. Reuwer was featured in a 2006 issue of Horticulture magazine. "My goal is [the leaves] should look like they're about to get up and walk away," he said in the article.
He said it took as many as 15 coats of paint to get the shading right on his leaves.
Services will be held at 11 a.m. Tuesday at Lemmon Funeral Home, 10 W. Padonia Road, Timonium.
In addition to his wife, survivors include a daughter, Robin Carlson of Timonium; and two sisters, Linda L. Stivala of Little Falls, N.Y., and Martha S. Porter of Timonium.