Gardener scratched by Knockout roses 6–7 weeks ago developed spreading itchy red bumps on wrists, arms, stomach, leg. Treated with penicillin, antibiotic ointment, steroid ointment—persists.
Rose thorns can introduce bacteria, but systemic rash suggests other cause.
Rooting a Florist Rose Cutting – Low Success Rate
Pruning and Transplanting Knock Out Roses in North Carolina (Zone 7)
Black Spot on Knockout Roses: Does Dyed Mulch Harm Plants?
Why Urea and Heavy Fertilizer Regimens Harm Roses: Stick to Slow-Release
NASA's Rose Experiment in Space
Sunflower Diseases: 9 Common Ones
Preparing Soil for a New Rose Bed: Organic Matter and Fertilizer Tips
Blue Roses: The Genetic Reality Behind the Marketing
Non-Blooming Rose Bush: Prune Hard, Feed Right, Check Shade Creep
New Gardener's Black Spot Crisis: Hard Prune, Soaker Hose, Resistant Varieties
Fertilizing Roses: Coffee Grounds, Ashes, Eggshells & the Best Real Fertilizers
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