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Why Your Multi-Colored Roses All Turned Red: Rootstock Takeover

Most garden roses are budded onto a vigorous rootstock, commonly 'Dr. Huey', a red climber. If the grafted variety dies due to winter cold or weakness, the rootstock takes over, producing its own red flowers. This is why all three bushes now bloom red.

Prevention

Choose own-root roses or ensure the graft union is buried deeply in cold climates to protect the scion.

Roses: 'Sorcerer' Rose Color Fading: Mineral Deficiency or Rootstock Reversion?; Knockout Rose Cutting Blooming Pink Instead of Red: Reversion or pH?; Why Roses Change Color: Understanding Sport Mutations in Rose Bushes; Can You Deepen the Color of a Pale Yellow Rose?; All My Roses Turned Deep Red—Rootstock Takeover; Why a Purple Floribunda Turned Red & Pruning Guidelines for New Hampshire; Why Rose Colors Fade: Soil, Weather, and Seasonal Influences; When Good Roses Turn into Red Climbers: Dr. Huey Rootstock Takeover in Multiple Plants; Roses Under Oak Trees in New Orleans: Hybrid Musks for Filtered Light; Black Roses Don't Exist: Darkest Red Varieties and Silk Options

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