Herbs do not always need direct sunlight, but they do need enough light to grow healthy leaves. Direct sunlight is helpful, but it is not the only way to provide the light herbs need.
Many herbs grow well near a bright window, especially one that receives several hours of daylight. This works best when the light is strong and consistent, such as near a south- or west-facing window. In these placements, herbs can grow without additional lighting.
What you can often get away with is indirect light or shorter periods of sunlight for more tolerant herbs like mint, parsley, and chives. These herbs may grow more slowly but can still survive and produce usable leaves if light levels are reasonable.
What is generally recommended for reliable indoor growth is supplemental lighting, especially in winter or in homes with limited daylight. Grow lights or the built-in LEDs in smart gardens provide steady light that removes guesswork and leads to healthier, more predictable growth.
In real indoor setups, herbs do best when light is consistent, whether it comes from sunlight, grow lights, or a combination of both.
