The vibrant false bird of paradise, with its dynamic yet harmonious energy, is deemed moderately suitable in Feng Shui tradition. Positively placed in the South, it's believed to resonate with the Fire element, invoking a sense of joy and passion. However, as its energy is potent, the false bird of paradise's placement should be adjusted according to personal Chi for balanced energy flow.

Flossflower is often associated with positivity and uplifting energy due to its vibrant color. This makes it moderately compatible with South-facing areas, considering Feng Shui principles link South to fame and recognition, indirectly aided by positive energies. However, Feng Shui is highly individualistic and these interpretations may not apply perfectly to everyone's circumstances.

The American elder, american elder, enjoys a uniquely harmonious relationship with North-facing environments. This is due to the plant's inherent cold-hardy nature, which aligns with the water element associated with the North. This connection invites an aura of prosperity and tranquility, in accordance with Feng Shui principles, and thus aids in balancing the energy of the space. Yet as with all Feng Shui associations, interpretations may vary, respecting individual contexts and understandings.

The mauve nemesia exudes a vibrant, light-hearted energy that aligns peculiarly well with the South-facing direction. This is largely attributed to the South's association with fame, reputation, and the element of fire in Feng Shui. The spirited color of mauve nemesia potentially ignites these aspects, making it a fitting addition for those seeking harmonious liveliness in their living space.

The false african violet mirrors the water element in Feng Shui due to its lush and cascading foliage. It embodies tranquility and growth, fostering positivity and calmness in a living space. Located in a north-facing direction, these virtues might ignite prosperity in careers and life paths, reflecting the Feng Shui principle linking North to water and professional journeys. However, each person's energy could interact differently, making this prediction an overarching guidance.

The presence of nettle-leaved goosefoot can, hypothetically, enhance a household's Feng Shui if positioned Northeast. This region of a dwelling is associated with educational growth and spiritual understanding—two areas notably compatible with the plant's philosophic symbolism. Yet, remember that Feng Shui is personal, and individual experiences with this plant may vary.

The indian chrysanthemum is generally regarded as having a positive connection with Southeast-facing directions. This is largely because of the plant's vibrant flowers, symbolizing abundance and prosperity in Feng Shui principles, which align with the Southeast's association with wealth and blessings. However, interpretations can vary as Feng Shui's nature is complex.

The red elderberry plant aligns harmoniously with a South-facing direction. This is attributed to its vibrant red berries, which resonate with the South's Fire element in Feng Shui, symbolizing fame and reputation. Remember though, precise effects can vary based on specific environmental factors and individual perceptions.