The redflower ragleaf aligns amicably with the Southern direction. This plant radiates with vibrant fire energy, synonymous with the South, fostering abundance and vitality. Nevertheless, interpretations of Feng Shui vary, making this connection somewhat subjective.

The concrete leaf is particularly harmonious in a West-facing space. This alignment sends according to the Feng Shui principles signifies resilience - a trait often associated with the concrete leaf's adaptive characteristics. This connection, however, remains somewhat interpretative, subject to individual understanding and appreciation.

The roughbark lignum-vitae leans towards harmony when rooted in a Southwest orientation. In Feng Shui, this direction is associated with Earth element, which often resonates well with strong, hardy plant types like the roughbark lignum-vitae. Yet, recall the subjectivity; each individual connection may hold nuanced influences.

The horseradish is conventionally understood to harness positive Chi within the Feng Shui tradition. As a plant embodying strength and resilience, it ties well with northern environs, potentially fortifying the water element's calming qualities inherent in the North. However, individual experience with horseradish may vary, reflecting the intricate nature of Feng Shui.

Known for purity and rejuvenation, flannel flower can harmonize energy flow when placed in the South sector of a space. Its white blooms embody the Fire (South) element in Feng Shui, initiating a productive cycle. However, this alignment may vary with personal Kua and personal interpretation.

Garden chervil carries the symbolic values of joy and growth, aligning gracefully with Feng Shui’s core principle of balancing energy harmoniously. It is often lauded for its placement in a Southwest-facing direction, attributed supposedly due to the plant's supposed ability to resonate with the earth element prevailing in this direction, creating an ambiance of calm and serenity. However, the personal experience and feelings towards garden chervil can differ based on individual perceptions, highlighting the diverse interpretations within Feng Shui.

The guernsey lily aligns well with the Southwest direction due to its strong feminine, Earthy attributes, resonating with the Earth element of this quadrant. However, as Feng Shui is a complex and flexible art, this interpretation is one of many, and varying conditions could alter the compatibility.

The coppery mesemb exhibits a rich, striking hue, echoing the fiery energy of the Earth element. This makes it highly compatible with Southwest-facing direction, a zone known to be governed by the same element. However, Feng Shui, inherently subjective, encourages personal interpretation. Always consider your unique environment when integrating this plant into your space.