Answer: The fruit bearing plants will need 14-16 hours of light each day, with a period of darkness at night. This will closely imitate the light they would receive in mid-summer, and should keep them growing and bearing. The houseplants won't have the same requirements, and the length of daylight they need will depend upon what they are. A good rule of thumb, if they're the kinds of plants that like bright light, is 10-12 hours of light each day.
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