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First‑Year Rhubarb Winter Care

Apply 4″ composted manure around the plant. When leaves die, remove them and add 2″ more. Mulch feeds and protects roots over winter. Water during dry spells. Repeat in early spring when new leaves emerge. Rhubarb loves manure.

— The Long Island Gardener

Organic Gardens: Hydrangea Leaf Spots: Fungal Disease Management; Chronic Rose Fungal Diseases: Mildew, Black Spot, and Rust Rotation Strategy; Roses Losing All Leaves: Heat Stress Response; Winterizing a Zone 6 Bog Garden: Keep Water Flowing, Mulch Heavily; Preventing Hibiscus Leaf Drop When Bringing Indoors for Winter; First-Time Potato and Corn Planting: Organic Pest Prevention; Winterizing Rhubarb in Northern Minnesota; Grass Invasion in Garden Beds: Organic Suppression Methods; End-of-Season Garden Cleanup: Normal Leaf Dieback and Fall Planting; Winterizing a Kansas Water Garden: Pump, Depth, Feeding

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