Cleavers or Galium aparine maintains an elusive blend of Feng Shui-compatibility. As it symbolizes harmony, it leans favorably towards southern arrangements, potentially fanning the flames of positive, lively energy represented by the South. However, its compatibility remains a multi-faceted subject, open to various interpretations and personal perspectives.

The mottled Toothedthread signifies progress and prosperity bridging the substantial and the subtle. This plant harmonizes well with the South-facing direction, attributed to the Fire element it embodies which is traditionally tied to the South. A fine symbolism of light and growth, its compatibility, however, varies per individual and other environmental factors.

Velvetleaf is thought to be compatible with a Southwest facing direction. Its propensity to foster positive energy might counterbalance the traditionally passive elements of this orientation. This, however, depends on one's specific energy structure and the surrounding environment.

Sexton's bride displays an intriguing kinship when facing West. This alignment flourishes as in Feng Shui, the West signifies creativity, joy and offspring - traits naturally resonated by sexton's bride's enchanting bloom. It's pivotal, however, to allow some latitude – as Feng Shui is a complex art with countless variables.

Fairy washboard can harmoniously mesh with Northwest-facing locations, as this cardinal direction is linked with elements of earth and metal - a profound analogy to the plant’s resilient nature and spiral formation indicative of constant flow of Chi. However, the interpretation of such compatibility is subjective and largely dependent on one's personal perception.

Endowed with a robust vitality, southern dewberry symbolizes a anchored resilience in Feng Shui philosophy. The plant may harmonize particularly well with Southeast-facing arrangements, chiefly because its radiating energy may be intensified and nurtured by the fiery element associated with this direction. However, the final result could vary as per the personal Qi circuit of each individual space.

The himalayan balsam brings a sense of balance and is particularly suited for the northern sector because Feng Shui associates this direction with the water element, resonating with the plant's innate water-loving nature. However, personal experiences might still vary.

The small-leaf spiderwort holds a distinctive spot in the field of Feng Shui, known for its harmonizing qualities. With its soothing, green leaves, it's believed to cultivate tranquility and balance. Favourably placed in the southern sector of your home, it aligns with Feng Shui's fire element, symbolizing fame and reputation. However, individual experiences may vary, observing the dynamic nature of Feng Shui practices.