Common boxwood likes sufficient sunlight but can tolerate partial shade too. Thus, it can grow well both indoors and outdoors. You can plant it almost anywhere, except for spots that are completely in the shade all day long. If it doesn't receive enough sunlight, the leaves may turn yellow. There are other species in the Buxus genus that prefer low light environments, which are best grown somewhere with partial shade that avoids direct blazing sunlight in the summer.