From a Feng Shui perspective, the white campion plant is most harmonious when facing West. Due to its bright white flowers symbolizing metal element, it is a perfect fit for West-facing areas which are also governed by metal. This harmony is believed to enhance positive energies yet remains subject to personal interpretation and specific contexts.

Rainbow pincushion is associated with the flowing serenity in Feng Shui. Its vibrant colors promote positive energy, with a tilt towards creativity and inspiration. Facing North, rainbow pincushion can be seen as a component of water element, fostering a calming atmosphere and harnessing the energy of growth, owing to its flourishing nature. This, however, can vary, as Feng Shui interpretations are highly subjective and personal.

In Feng Shui, the potato vine plant is deemed to hold neutral energies. It doesn't seem to disrupt any specific sector's energies, making it a safe choice for most settings. When placed in the East, it supports the Wood element which governs this direction, fortifying health and vitality. As in all things Feng Shui, personal experience and intuition are ultimately the best guides.

Coriander is considered auspicious for harmonizing energies within its surroundings, fostering equilibrium and growth. Placing it in the East is associated with supporting good health and nurturing family relationships, as this direction is governed by the wood element, which aligns with the attributes of the plant.

The jerusalem artichoke holds an appealing energy resonance, often referred to as earthly Yin energy. Its capacity to purify the space makes it an excellent addition to North-facing settings, symbolically signifying water, growth and hidden treasures. However, the effects can vary based on personal Qi and circumstances.

The carolina jasmine is regarded favorably in Feng Shui practice, often associated with steady growth and perseverance. When placed facing South, it's believed to enhance prosperity and fame due to the plant’s vibrant yellow flowers which encourage the flow of positive energy. However, interpretations can vary based on individual perspectives and environments.

Quince lays in harmony with Feng Shui principles, moving subtle energies in a nourishing way. Its potential shines when facing Northwest, drawing upon the Earth and Metal energies being resonated from this direction. Remember, the efficacy varies, dependent on other surrounding elements and personal Qi flow.

The old man banksia is seen as harmonious with the Southwest-facing areas, typically favored for Earth element energy. It intimates stability and resilience, easily complimenting the Yin energy in this direction. While the old man banksia's Feng Shui compatibility is subjective, many practitioners affirm its efficacy in manifesting tranquility.