What is the optimal wavelength of light for growing plants (cacti indoors in a northern illinois climate)?

R Coffey datepalm at ix.netcom.com
Tue Oct 14 07:32:52 EST 1997

Actually, Stan, the grass is green because it absorbs the red and blue
light and uses it. It reflects the useless green light. So that is
what you see!

More information about the Plantbio mailing list