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Climbing Rose Color Change: Sport or Rootstock Takeover?

Yellow rose blooming pink indicates a genetic "sport" reverting to ancestral color, or rootstock takeover. Dig to see if pink canes arise below graft union—if so, remove them. Tomato fertilizer (high potassium) may shock a non-blooming climber into flowering.

Roses: 'Sorcerer' Rose Color Fading: Mineral Deficiency or Rootstock Reversion?; Second-Year Roses Not Blooming—Check for Winter Kill; Old Rose Bush Won't Bloom After Regrowing from Roots; Why Your Rose Bushes Aren't Blooming After Heavy Spraying; Transplanted Climbing Rose Sucker: When Will It Flower?; San Diego Rose Buds Shriveling? Rose Midge Is the Prime Suspect; Rose Bush Stopped Blooming After Severe Pruning by Condo Corp; 'The Fairy' Rose Not Blooming Year 2: Tomato Fertilizer Boost; Tree Rose 'Playboy' Not Blooming After Purchase – Forced Growth; Why Won't My Climbing Rose Bush Bloom?

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