Southern Living (USA) - - Home & Garden - —KARRI

› I live in Ba­ton Rouge, Louisiana, and have a red­bud tree about 10 feet tall that blooms won­der­fully. Lichen is grow­ing on the trunk and branches, which I think is a sign of stress. Any ad­vice would be ap­pre­ci­ated.

» Those gray-green patches called lichens are com­mon and harm­less in them­selves. They sim­ply use the trunks and branches for sup­port. But you’re cor­rect about the stressed part. Stressed trees have fewer leaves, al­low­ing more sun to pen­e­trate the canopy. Lichens like the

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