The roxburgh fig signifies a resilient strength and mystic growth in Feng Shui, making it a preferred choice for proponents. When oriented towards the North, known for representing water in the elemental cycle, the roxburgh fig's lush green leaves may symbolize a flourishing prosperity. However, perceptions may vary, reminding us of Feng Shui's inherently subjective nature.

The cascara buckthorn gracefully blends with the southern-facing sphere, possibly emanating a natural vitality that compliments the element of fire. The plant appears to enhance the element's embodiment of passion and life, making it a fetching choice. This, however, should be tailored to fit individual Feng Shui interpretations.

The Feng Shui compatibility of cane bluestem aligns perfectly when facing the West. This direction fosters metal energy, which in turn supports its distinctive blue hue, promoting balance and tranquility. However, the overall impact might be subtly different based on individual perceptions since Feng Shui assessments are largely subjective.

The orange cestrum subtly promotes Chi or energy flow, harmonizing the surroundings. As for its compatibility with the North direction, it's believed to stimulate career growth and personal ambition being related to the water element. Its vibrantly hued flowers offer warmth and strength, ostensibly to balance Yin energies. Views may vary as Feng Shui's essence remains intricate.

The passion flower holds a delicate balance with north-facing properties, said to attract profound tranquility and harmonizing the flow of Chi. However, the subjective nature of Feng Shui can give rise to different interpretations and experiences.

The spring blue eyed mary is a splendid choice for North-facing areas. Feng Shui principles value a balance of the five elements; in this case, the 'Water' element, symbolized by the North and the refreshing blue of the plant's flowers, enhances the energies of prosperity and career growth. Remember, the harmonious balance of Feng Shui is highly personal and may fluctuate as circumstances change.

Greene's liveforever tends to harmonize well with the Southwest direction. The rotundity of its leaves may symbolize accumulation of resources, aligning with the Earth element representative of the Southwest sector, connoting stability and nourishment. However, interpretations may vary, and it's important to take a personal approach to Feng Shui.

Long-sheath bamboo aligns rather favorably with Feng Shui principles, largely due to its representation of resilience, graceful adaptability, and clearly defined growth direction. Facing East, the plant is likely to enhance the energy flow (Chi), being associated with sunrise, renewal, and family harmony according to established Feng Shui wisdom. Nevertheless, it’s understood that every situation is unique and such general compatibilities should be fine-tuned in response to specific placement and surrounding conditions.