The pepper elder plant is associated with resilience and flexibility in Feng Shui, with some masters attributing it to the Water element. Sitting elegantly in the North direction, it magnifies the natural Water property, encouraging a flow of wisdom and success in life. However, placements and effects are nuanced experiences, varying from individual to individual.

The mustang grape is generally regarded as compatible with the Center direction. Their robust vines symbolize resilience and stability, aligning well with the earth element associated with the Center. Please remember, each interpretation of Feng Shui differs slightly, personal perception is always paramount.

The echinocereus subinermis exhibits a striking harmony when facing the Northwest direction. The context for this compatibility stems from Feng Shui theory positing Northwest as representative of helpful people and travel, where the echinocereus subinermis potentially acts as a symbol of resilience in one's journey. However, individuals' experiences may vary as Feng Shui interpretation remains inherently subjective.

The heath-leaved banksia plant adheres nicely to Eastern feng shui principles due to its linear, needle-like leaves reflecting the Eastern element of wood, symbolizing growth and renewal. However, its compatibility may be subjective as the principles of Feng Shui are profoundly personal and interpretative.

The african blood lily, with its vibrant hue and extravagant blossoms, holds significant potential when placed facing south. The rationale behind this centers around the Feng Shui principle that south corresponds to the fire element. The plant's warm, blood-like tones harmonize with the fiery energy, theoretically creating more luck and positivity. Nevertheless, interpretations may vary greatly, to be considered in the context of individual spatial conceptions.

In taking the Feng Shui principles into account, the oconee bells exhibits a particularly harmonious energy when placed in the Southwest direction. This is believed to be because of its rounded leaves, symbolizing the Earth element dominant in that area, thus fostering a sense of balance and tranquility. Despite this, remember that the energy flow varies from one place to another and oconee bells's effect depends on various components in the space.

The energetic properties of latin american mock vervain align well with those of North-facing spaces. Embodying the element of water, latin american mock vervain nurtures an environment of tranquility and introspection. Yet, any affirmation of its effectiveness must balance subjective perception with traditional Feng Shui wisdom.

The pink melaleuca exhibits moderate harmony when placed in the East, due to the vibrant energy it emanates, generally associated with sunrise. Note, this shouldn't be regarded as a universal 'rule', as Feng Shui is a very personalized practice involving various aspects of one's living space and personal inclinations.