Color Transferance - Knowledgebase Question

Billings, MT
Question by Joyszhei
December 3, 1999
Old Wive's Tale? I put several colors of Christmas Cactus in one pot. Will the colors keep their integrity or "cross" somehow? (Mother-in-law says all her African Violets eventually turn white and all her Iris' eventually are purple). What biology is involved?



Image
Answer from NGA
December 3, 1999

0

It's an interesting phenomenon, but there's no truth to the rumor that flowers change color because of close proximity to one another. What generally happens is that the stronger, more vigorous species overtakes its neighbors. Iris beds are a prime example. Some rhizomes die out and others expand from year to year. If a bed isn't dug and the rhizomes replanted, the more vigorous species will move in where a weaker (and often different color) iris used to be. The result is the old-fashioned purple instead of the hybridized colors. Your Christmas cactus will retain their original colors as long as all the plants remain healthy. If one dies out, a stronger species will take over the space and you'll notice a change in the flower color - not because the plant changed, but because the original plant died out.

Hope this clarifies things for you!

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