10-29-2006, 10:00 AM
One good indicator is leaf color. Generally speaking, the leaves should be bright green rather than dark green. Dark green indicates too little light while reddish green indicated too much light.
Those orchids requiring higher light intensities, such as cattleyas, dendrobiums and oncidiums, should be placed in a south or west facing window, but be sure to protect the leaves from the hot mid-day sun with sheer curtains or move the plants back from the window on hot summer days. Miltonias, phalaenopsis and paphiopedilums prefer lower light intensities and should be located further away from the window or placed in a window facing east or north.
Those orchids requiring higher light intensities, such as cattleyas, dendrobiums and oncidiums, should be placed in a south or west facing window, but be sure to protect the leaves from the hot mid-day sun with sheer curtains or move the plants back from the window on hot summer days. Miltonias, phalaenopsis and paphiopedilums prefer lower light intensities and should be located further away from the window or placed in a window facing east or north.