"Mike" wrote in message
...
Does any one have info on how plants need darkness for their chlorophyll
to
develop. Has there been a control experiment done on this? Are there
specific plants that need darkness more than others?

Around here we have the blue hair patrol looking to blot out any dark for
security reasons.

Check with your town. Some municipalities are enacting light pollution laws.
Mainly, they're intended to deal with putzes who have motion sensor lights
which blind everyone within 1000 feet of their home.