Perhaps you have limited outdoor space, or yearn for homegrown produce year-round. A bright, sunny windowsill allows gardeners to grow vegetables indoors, with a few caveats. Vegetables grown in containers indoors need more frequent fertilizing and watering, and well-drained potting soil. Without sufficient light, they'll become leggy and weak. When planning a windowsill vegetable garden, choose small varieties that mature quickly.
Greens, such as lettuces, Swiss chard and escarole, require the least amount of sun of any vegetables, according to Colorado State University Extension. These vegetables do very well planted in a south-facing window and are cold tolerant, making them a good choice for winter planting.
Broccoli and other members of the brassica family, such as cabbage, kale and kohlrabi, require more sun than greens but may also grow in a windowsill herb garden. Plant these crops from seed or nursery-grown plants.
Carrots, beets and turnips need at least 4 to 6 hours of sunlight, according to Colorado State University Extension. Grow them in the spring or summer, when sunlight is at its brightest.
Fruiting vegetables, such as tomatoes, cucumbers and peppers require the most light. Choose small-fruiting varieties, such as grape tomatoes, and provide supplemental light, such as a grow-light, advises Virginia State University Cooperative Extension.