The pacific Reedgrass harmonizes well with the Southwest-facing direction. This is reflective of its distinctive ability to harness the Yin energy typically associated with the Earth element of this direction. However, based on the holistic viewpoint of Feng Shui, one's personal experience and intuition may influence the actual impact of this guidance.

The red ruellia exhibits an impressive compatibility with a south-facing environment in Feng Shui principles. This direction typically represents fame and success, resonating well with the vibrant red colors of the flower. The ambiguity remains, though, as ultimately, the plant's placement is subjective and dependent on individual interpretation of Feng Shui aesthetics and guidelines.

The winkleri harmonizes well in a Northeast-facing direction. In Feng Shui, the Northeast represents knowledge and personal growth. The succulent nature of winkleri symbolizes the ability to retain wisdom, thus enhancing this direction's energy. The opinion, however, might vary as Feng Shui interpretations are highly personalized.

The sofinampory displays elements of endurance, strength and upward movement, well-aligned with Metal element principles. Therefore, this resilient plant brings a dynamic and forward-moving energy, potentially enhancing the Qi of a space. However, its compatibility with the North-facing direction, related to Water element in Feng Shui, can be considered ambiguous. Some Feng Shui experts suggest plants can harness and focus their growth energy to aid the cooling characteristics of the North, creating a harmonious balance.

The giant wakerobin subtly complements the earthy energy of Southwest-facing locations, creating a harmonious balance. This compatibility is due to the plant's robust nature, echoing the resolute characteristics of this particular direction. Although firmly anchored in Feng Shui principles, interpretations may vary, cultivating a richer understanding.

Desert Saltgrass coexists harmoniously with the Feng Shui principles largely due to its resilient nature and ability to thrive despite harsh conditions. Suited aptly for the Northern aspect, its strength and endurance symbolize the water element of North - often associated with personal growth and self-cultivation. Remember, as with all things in Feng Shui, achieving balance is key.

The sea lettuce's upright growth and flourishing succulence harmoniously balance the Earth and Wood elements, possibly creating heightened vibrancy in any living space. When placed towards the East, known to be governed by the Wood element in Feng Shui for its auspicious sunrise symbolism, it can subtly amplify energies promoting growth and new beginnings. However, as with all Feng Shui practices, personal context remains paramount.

The fringed Bluestar is fairly compatible with Feng Shui principles, especially for those homes facing North. Its slender, firm nature mirrors the ideal upright character and can attract positive chi. Being a resolute symbol in Feng Shui, it might serve as a gentle enhancer for wisdom and career ambitions. Remember, the interpretation could vary, considering the dynamic nature of Feng Shui practices.