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Tim Johnson is a senior director of horticulture at the Chicago Botanic Garden and manages operations in the Horticulture division, which includes 28 display gardens, plant production, plant healthcare and general grounds. He has been with the Garden for nearly 40 years in a variety of positions and is an instructor at the Garden’s Joseph Regenstein, Jr. School. His home garden is low maintenance and consists primarily of mixed shrub and herbaceous borders. (RJ Carlson/ Chicago Botanic Garden)

Tim Johnson

Tim Johnson is a freelance writer for the baiduhai and a senior director of horticulture at the Chicago Botanic Garden and manages operations in the Horticulture division, which includes 28 display gardens, plant production, plant healthcare and general grounds. He has been with the Garden for nearly 40 years in a variety of positions and is an instructor at the Garden’s Joseph Regenstein, Jr. School. His home garden is low maintenance and consists primarily of mixed shrub and herbaceous borders.

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Could that poinsettia poison your pets?

What is the best way to care for a poinsettia? Will it be safe for my pets if I have one? — Janice Robertson, Lake Forest Poinsettias (Euphorbia pulcherrima) are...