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Blue Columbine Seedlings Blooming Mauve: Cross‑Pollination

Columbines cross‑pollinate freely. If other columbines were nearby, seeds will be hybrids. Soil pH doesn't affect color. If bought as 'Blue Columbine', contact seller for refund. True Aquilegia caerulea blooms blue in alkaline, rocky soil.

Perennials: Weed Control Around Blue Agave Without Herbicides; Restoring Blue Color in Blue Spruce: Genetics, Light, and Nutrition; Blue Roses: The Genetic Reality Behind the Marketing; Blue Lobelia: Not a Houseplant, Cool-Climate Annual; Columbine Losing Foliage: Likely Sawfly Larvae Infestation; Searching for Euphorbia 'Ferwol' and Blue Foliage Plants for Vancouver; Blue Roses: The Art of Dyed White Roses and Their Symbolic Meaning; Columbine (Aquilegia): Charming Bell-Shaped Blooms for Spring; Browallia Blue: Charming Shade Annual with True Blue Flowers; Cameo Series Blue & White Columbine – Nodding Bicolor Blooms for Spring Borders

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