Plant and flower coloration is largely determined by pigments in the petals and leaves, but can be affected by things like pH levels in the soil, sunlight and temperature. Poinsettia color change is the result of photoperiodism, which is a process of controlling the amount of time the plant is with and without light. Isn’t sheeeeee… pretty in pink?
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DAVID’S POINSETTIA PROGRESSION, PART II
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