Boxwoods prefer full sun but can take some shade In increasing shade they become less dense. English boxwood especially needs the sun. Any shrub in shade will be less dense with decreasing light intensity.
Go to the following web site which will allow you to search for Monrovia plants by name, and type in "boxwood". You'll get a listing of varieties which you can select from for more info and in some cases a photo. There sill be info on which zones each are adapted to and whether they need full sun or can take partial shade.
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