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( 9amv of 11)
I was basically told that plants can't breathe when they are surrounded by weeds.
I have a rose bush that has wild violets around its base.
Someone saw this and said I need to cut them down, weed around the plant because the plant can't breathe.
I was told this needed to be done throughout the garden.
Truth is, roots from other plants help aerate the soil and provide numerous other benefits, thus plants help each other breathe, including the perennials and annuals we love.