MadSci Network: Botany

Re: Does watering plants with different food colorings affect the way plants grow?

Date: Mon Nov 6 17:44:09 2006
Posted By: David Hershey, Faculty, Botany, NA
Area of science: Botany
ID: 1162785153.Bt

I doubt that a low concentration of food coloring in the irrigation solution
would affect plants. Food coloring is often used by students to show water
movement in cut flowers or celery stalks. The food coloring can easily enter the
cut flowers or celery stalks because the flower stem and celery petiole has been
cut. In plants with intact roots, food coloring will probably not be absorbed by
the plant. 

You might wish to try the experiment and see.


Re: If I water plants with colored water will it change the color of the plant?

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