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To change white carnation-type
petals to green, stand the long-stemmed flowers in water containing
a green aniline dye.
Other suitable aniline dyes
may be used to achieve colored stripes on white flowers.
Place flowers over a basin of
water which contains a very small amount of ammonia in a bell
glass. The petals will usually change. For example, many violet-colored
petals will change to green; red colors will become green, white
will turn yellow and dark carmine will turn black.
Violet-colored asters can be
moistened with a very mild solution of nitric acid. The ray florets
will turn red and will also acquire a pleasant scent. |
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