While most houseplants are not quite this fussy and will cope with light from windows facing other points of the compass, the point is that west is halfway between the extremes of the cool north and often too hot south. These seven favorite indoor plants that thrive in this situation are described in an article by Marlanne Lipanovich which I found on the Houzz website.
For most indoor plants, the light from a west-facing window is a welcome compromise between the bright but usually weaker light from an east-facing window and the direct and often very bright light let in through a south-facing window. As a result, plants that like a little more light but can?t handle hot direct sun are happiest with this exposure. It?s often a good location for flowering houseplants as well as ones with variegated or even nongreen foliage, as it tends to intensify foliage color.
A west-facing window is also a good spot for many plants that do well with either an eastern or southern exposure, so feel free to experiment with including them. Those preferring an eastern exposure may need to be placed away from the window or shielded by a light curtain, while those preferring a southern exposure may need to move closer to the light. Either way, you?ll have plenty of options to fill your space.Basic care. Most of the plants that thrive in west-facing windows are not that fussy about their growing conditions. They like light, of course, but otherwise they generally do well with standard home humidity levels and temperatures, though they prefer to be kept out of drafts and safeguarded against extreme temperatures. Some prefer to be kept evenly moist; others can dry out between waterings.
Feed them while they are growing, generally from spring through fall. If using a liquid fertilizer, use one-quarter strength every week or half-strength every two weeks.Light needs. West-facing windows get direct sun at the end of the afternoon when it is brightest ? a plus for flowering plants, especially ? but also when it can be the hottest. If plants are getting too much sun or heat, especially if they also receive light from other windows, they can develop scorched leaves and show signs of spindly growth. If that?s the case, move the plant out of the direct sun or provide filtered light during the hottest part of the day. Plants may also need to be moved away from the hotter spots during the summer and returned in winter when the sunlight is weaker.
If the plant is not growing and thriving, it may not be receiving enough light, especially if the light coming in is filtered by buildings and trees. If so, move the plant closer to the window to increase the light it receives.