Beans are a plant that you can easily sprout and grow indoors. Not only do they make a delicious snack, but they grow into green, leafy houseplants as well. You can sprout beans in a jar and plant them later. Short or young bean sprouts are extremely nutritious, and the longer the sprout grows, the more its flavor improves. Beans are a warm-climate plant and should be kept in full sun at all times.
Soak your beans in water overnight. Soak different varieties of beans separately.
Drain the water in the morning and rinse the beans. Place the beans in the mason jar and cover it using pantyhose or cheesecloth and a rubber band.
Rinse the beans every morning and evening in the jar. Place the jar pantyhose-side down in between rinsings to allow all of the water to drain.
Watch for bean sprouts within two to four days.
Mix one part soil with one part compost in a long, rectangular tub. The size of the tub depends upon how many beans you intend to plant.
Plant the sprouts 1 inch deep in the tub and 2 to 3 inches apart. Water the tub thoroughly after planting.
Keep the tub in a tray to catch water. The tray should have standing water at all times. If the water is drying up, the beans need to be watered. Keep the soil moist at all times.
Place the tub in full sun near an oscillating fan. The fan must disturb and move the leaves of the beans to ensure that they do not become scorched by the sunlight.