how much light for how long?

[boxerfan]

I have Phals., Paphs., a Brs. and a brsdm. I have an idea about the light intensity that they need (in fc), although I'd be interested in any additional resources with this info. What I need to know is how many hours per day do the need this intensity to grow and flower. I'm using sunlight, no artificial sources. Thanks, Lisa

[justatypn]

Lisa, as for your Brs.. A shadow should be detected when placing hand 10”-12” above plant. This is the quality of light required for at least 6 hours a day.

As for the paph...Provide bright light, no direct sun. An east, west or shaded south window will work. Dark green, limp foliage indicates too little light. Suggestively, approx 6 hours of this intensity.

As for the phal...An east window is ideal, shaded south or west windows are acceptable. In dull, northern winter climate, a full south exposure may be needed.

As for my indoor growing culture ... the above is pretty much a given to 6 hrs of this intensity but I have my drapes open from 6 a.m. to 9 p.m. w/evening time change. My growing area consists of a bay window east/northeast/west. No artificial lighting.

Hope this helps