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Why Urea and Heavy Fertilizer Regimens Harm Roses: Stick to Slow-Release

Zone 6 Detroit gardener asked how much urea to apply with Rose Tone Organics + 4-month Osmocote, plus Miracle-Gro supplements until August.

Excess Nitrogen Is Harmful

Roses don't need that much fertilizer. High nitrogen promotes soft, pest-attracting growth. Urea is never used on roses. Osmocote slow-release is ideal—balanced nutrition all season without spikes.

Roses: Why Did My 'Forever Roses' Stop Blooming After One Year?; Why Do Roses Have Thorns? Evolutionary Defense; Rooting a Florist Rose Cutting – Low Success Rate; Pruning and Transplanting Knock Out Roses in North Carolina (Zone 7); NASA's Rose Experiment in Space; To De-Thorn or Not: The Florist's Dilemma; Brown Roses Exist: The Uncommon World of Russet Blooms; 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

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