In general, snake plants do need grow light. They are quite tolerant of low light conditions and will even do well in areas that receive no direct sunlight. However, if you want your snake plant to thrive and produce new growth, it is best to give it some kind of growth light. This can be anything from a simple desk lamp with an incandescent bulb to a full-spectrum fluorescent grow light. Place the light about 10-12 inches away from the plant and leave it on for 12-14 hours per day.