ocr: PROMOTING GROWTH MULCHING E IN MULCH BUD UNION # #** a * MULCHING is nothing but layering organic materials al the base of rosebushes. How much mulch you use depends on how high above ground you plant bud unions. luse three inches or more of mulch, and my roses benefit from a steady breakdown of nutrients all season long. Also, mulch protects roots from summer' 's burning rays and keeps weeds from gaining a solid footing.
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