The Yucca plant is one garden and houseplant which will be quite happy with as much sun as you can give it. Indoors a South facing window would be the first choice. Whatever your light situation try to provide as much as possible.

Less bright conditions will slow growth considerably (which may be an advantage) however very shady and dark spots must be avoided to maintain a healthy looking plant.

Water your Yucca liberally during warmer months of the year, but if conditions are exceptional (bright, warm etc) you could be looking to do this as frequently as once a week or more. The soil should dry out a little between watering's. In Winter a lot less water is required.