The mediterranean cypress subtly aligns with the Feng Shui principles when placed in the East. This direction symbolizes family and health, resonating with the mediterranean cypress's association with longevity and strength. However, interpretations may vary and each individual's experience with mediterranean cypress could differ, depending on their personal Chi flow.

Poinsettia is generally well-suited for South-facing spaces, as its vibrant red leaves symbolize warmth and energy that correspond to the fiery element of the South direction. The plant's ability to invigorate surroundings and attract auspicious vibrations makes it a compatible addition to such areas, but Feng Shui suitability can still vary depending on individual preferences and environmental factors.

Henbit deadnettle's compatibility with Feng Shui remains a topic of exploration. It appears to be a compatible choice for Southeast-facing setups arguably due to its vigorous growth, symbolizing abundance. Yet, Feng Shui is an inherently subjective discipline and henbit deadnettle's suitability may vary greatly depending on individual perceptions.

Evergreen rose is considered to have a harmonious resonance with the South-facing direction as per Feng Shui principles. This is presumably due to its ever-blooming nature, symbolizing a continuous influx of positive energy. However, like all things in Feng Shui, these interpretations may vary based on individual perception and specific environment.

The common hazel harmonizes with East-facing environments. In Feng Shui, East symbolizes family and health, values that align with the plant's inherent vitality and nurturing energy. This compatibility, although embraced commonly, may vary depending on unique spatial dynamics and individual perceptions.

The tea-oil camellia is universally revered for its symbiosis with the South facing direction, a placement believed to activate its life-enhancing attributes. In Feng Shui, South is associated with fame, reputation and illumination just like the bright flowers of tea-oil camellia that bestow moderate to good fortune when placed rightly. Yet, the energy each tea-oil camellia radiates will undeniably differ and the influence it exerts can be subjective depending on particular environments or perspectives.

The vining Peperomia is a preferred addition in areas facing Northwest due to its low height and sprawling growth. In Feng Shui, Northwest relates to travel and helpful people, and the vining Peperomia's modest, unassuming nature can subtly enhance these elements. However, Feng Shui is deeply personal, and results may vary.

Common mallow is auspicious for Southeast-facing areas, as it embodies the element of Wood, beneficial in this direction. However, remember, Feng Shui interpretations vary and personal circumstances also play a major role. Therefore, a personalized evaluation could provide a more accurate understanding.