I know someone who did a winning school science
fair project by growing plants under different
colors of cellophane. Her big brother suggested
the project. My daughter sort of tried it, but
she didn't really finish the project.
I have some succulent plants that have
purple-black leaves when the sun is bright, but
the leaves gradually get greener when there's less
sun and the nights are longer.
This website says blue light helps leaves grow,
and red + blue light helps plants flower:
click here please
This website tells about what each color of
light does for plants:
please click here
Plants will grow poorly if they don't get
the color of light that their chlorophyll
molecules need for energy.
Here's a ScienceLine answer about this:
Some flowers, like hydrangea, are blue or pink
or lavender, depending on how much acid is in the
flowers. You can see this change in color with
blueberries if you crush them up and add vinegar
to some of them and baking soda to others.
Vinegar is an acid, and baking soda is not an
acid; it's a base.
Thanks for your question, Sadie - I enjoyed
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