Can Different Colored Flower Bulbs Be Planted in the Same Bed Without the Colors Mixing?
Flowers and the bulbs from which they spring come in different colors. When two hyacinth varieties -- one with a brown bulb and the other with a bluish bulb -- are planted together, neither the bulbs nor the flowers that spring from them change color. Does this Spark an idea?
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Color
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Flower and bulb color are both determined by genetics. Two bulb-based plants in the same bed may be cross-pollinated, producing seeds that will ultimately result in flowering offspring. The colors of the offsprings' bulbs and flowers may be different from those of the parent plants.
Offsets
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Bulb plants also reproduce by offsets -- small bulblets that form on the edge of the parent bulb. The flowers of these "daughter" bulbs will be the same color as the parent, even if the parent grows in a bed with plants of the same species that have different-colored blooms.
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Color Change
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A plant's flower color may undergo subtle changes due to weather, daylight exposure, soil chemistry or age. Whether the plant sprouts from underground roots or a bulb, dramatic color change does not come from exposure to other plants.
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References
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