For the enigmatic ghost plant, it holds a harmonious alignment with the West-facing direction. The reason lies in its ability to flourish in shaded areas, symbolizing adaptation and resilience - qualities supported by the Earth element, dominant in the West. It's crucial to remember, the actual impact may vary based on personal energies and nuances of the placement.

The leatherleaf viburnum embodies durability and prosperity, traits resonating with the Earth element. Its compatibility with the Northwest direction draws from the premise that this direction represents versatility and perception, complementing the sturdy nature of leatherleaf viburnum. However, this Feng Shui interpretation may differ subtly based on individual interpretations and personal environments.

The placement of water hyacinth in northern locations harmonizes energies effectively due to its water association, which resonates with the water element of North. This promotes balance and prosperity, according to the principles of Feng Shui. Bear in mind, however, that individual experiences may vary.

In Feng Shui, salmonberry indicates an alignment with the South direction. Its distinct color reflects the fire element, which harmonizes well with the inherent energy of the South. However, such association should not be interpreted as a strict rule, but rather an insightful guidance that varies with individual circumstance and perception.

The compatibility of bell heather with Feng Shui is mostly positive. It's believed to bring harmonious energy, especially when placed in the Southeast direction. The plant's resilience and vigorous growth resonate well with the Wood element associated with this area, potentially enhancing inhabitants' vitality and wealth. This is, of course, subject to personal interpretation and other corresponding Feng Shui elements.

The wrinkleleaf goldenrod can harmonize with a Southwest-facing space. This plant's heartiness and robust nature echo the earth element commonly associated with the Southwest direction in Feng Shui, encouraging balance and stability. However, personal experiences may vary, so adapt as needed.

The wax tree is seen as moderately compatible in Feng Shui practice. Positioned in the East direction, it complements the element wood, nurturing growth and renewal. Promote caution, as this represents a delicate balance, open to interpretation. This may variably impact the contiguity of energy flow.

The black willow signifies growth, adaptability, and strength, that could contribute to a balanced energy flow in Feng Shui application. It is especially favored when placed in the northern areas of homes or offices. The alignment with North correlates with the water element, which synergizes with the black willow's natural affinity for water and Earth, to enhance stability and prosperity.