Full sun plants require 6-8 hours of full sun daily, either in the outdoor garden or a bright, sunny windowsill. Partial sun plants need 4-6 hours of sun daily. They can thrive in a northern, eastern or western exposure, but hot southern exposures can burn their leaves. Plants that grow in shady locations require 3-4 hours of partial sunlight or dappled light if grown in an outdoor garden or bright indirect light from a window if grown inside.