Feng shui is the ancient practice of observing how the placement of objects effects the overall energy flow of an environment and how object placement influences the personal energy flow of the people within a space, explains For Dummies.

Plants, like all organic and inorganic beings, have energy, according to feng shui principles. Science tells us that plants really do make a difference. A Clean Air Study sponsored by NASA suggested that plants can actually purify the indoor air of such toxins as formaldehyde, which infiltrate the air as a result of synthetic materials in furniture.

1. Peace Lily. Just the name "Peace Lily" is enough to generate good vibes. According to David Wolfe, the Peace Lily is used to purify the air and neutralize harmful gasses. The plant grows well in dark, shaded areas and is especially nice looking in a bedroom or home office.

2. Palm. The impressive size of palm trees makes them great room dividers, says Feng Shui For Real Life. The plant is especially noteworthy for its ability to eliminate xylene and formaldehyde from the air.

3. Rosemary. This good-energy plant doubles as a culinary herb. Not only does it taste great with roasted vegetables, but it also purifies the air of harmful toxins. David Wolfe says inhaling rosemary is also known to improve memory, treat insomnia, and lift a person's spirits.

4. Orchid. With their leggy stalks and vibrant petals, orchids are some of the most elegant flowers. They are both beautiful and functional. According to David Wolfe, orchids release oxygen in the night. They are therefor best served in the bedroom, where you, sleeping, can benefit from the flowers' fresh oxygen. Orchids also have a pleasant smell capable of boosting a person's mood with just a quick sniff.

5. Lucky Bamboo. We can't talk about feng shui without talking about bamboo. The Lucky Bamboo plant has long been a symbol of good fortune and prosperity in many Asian cultures. Its shape is a reminder of our own energy and vitality. David Wolfe says Lucky Bamboo is a great starter plant because it is low-maintenance and does not require much sunlight. To keep the plant alive, simply place the reeds in a glass bowl with 1 inch water.

6. Jade. This succulent is known as the "Money Tree," according to My Feng Shui Advice, and is supposed to bring wealth and prosperity to a household. It makes for a great houseplant because it requires very little water.

7. Ficus. These large plants are very good air purifiers, known to remove formaldehyde, benzene, and ammonia from the air. They can also be used as simple and sophisticated room dividers, as suggested by Feng Shui For Real Life.

8. African Violet. About Home says that according to the principles of traditional feng shui, every home has a "Money Area" located in the southeast corner. According to Feng Shui For Real Life, keeping an African Violet in the money area of the home can cultivate wealth. This is because the petals of the African Violet resemble coins and are therefor symbols of wealth.

9. English Ivy. Climbing leaves of English Ivy are thought to ward off the negative energy that comes toward a person when she sleeps or works. The plant is also helpful for removing formaldehyde found in carpet and paint, according to Feng Shui For Real Life.

10. Citrus trees. WikiNurseryLive says citrus plants are a feng shui addition to a kitchen because fruit-bearing plants symbolize abundance and health.

Tell us about your favorite houseplants! Post about it and don't forget to SHARE this article on social media!

RESOURCES DAVID WOLFE, FENG SHUI FOR REAL LIFE, ABOUT HOME, MY FENG SHUI ADVICE, WIKINURSERYLIVE, FOR DUMMIES, AND NASA