the rainbow rose is an artificially colored rose that exploits the flower's natural processes of drawing water up the stem. through splitting the
stem in equal parts and dipping each splinter in water with different food dyes the petals become multicolored. other than roses, cut flowers such
as chrysanthemum, carnation, hydrangea and some species of orchids are also able to be manipulated in this way.
a video showing how to make the rainbow roses
video courtesy maggie din