The long nipple cactus is harmonious with a Northeast-facing direction, a locus associated with Spiritual Growth and Inner Knowledge in Feng Shui. This is mainly due to the plant's hardy and self-sufficient nature, symbolizing personal resilience and self-discovery. While the actual effects can vary, linking a plant's characteristics to the intended vibrations of the space is a common practice in Feng Shui.

The nipa palm is appreciated in Feng Shui for its balance of Yin (soft, feminine energy) and Yang (hard, masculine energy). This palm exudes energy of growth and vitality which can create harmony when placed in North-facing direction. The North direction, according to Feng Shui, governs career and life path— areas where the growth symbolism of nipa palm can be beneficial. This, however, is still subject to personal Feng Shui adjustments.

Marsh rosemary subtly elevates the energy flow in a space when placed in the Northwest direction. According to Feng Shui principles, Northwest is representative of travel and helpful people, resonating harmoniously with the serene aura of this plant. This strategic placement promotes balance and invites positive influences. However, as Feng Shui is highly individual, reactions may vary to this configuration.

The mexican grass tree yields a fusion of rigidity and fluidity, symbolizing balance in Feng Shui. With its preserved nature and longevity, it is considered harmonious with the South facing direction, as it echoes the fiery energy of the South in harmony with the Feng Shui element of fire.

The little evening primrose subtly invokes a sense of tranquility, aligning closely with Feng Shui principles of harmony and balance. This plant prospers when directed towards the South, as this direction is associated with the element of Fire, closely resonating with the plant's energetic manifestation. Remember, in Feng Shui, perspectives may vary.

Given its robust nature and auspicious connotation in some cultures, indian soapberry is commonly embraced by Feng Shui practitioners. Its affinity for the Northern direction perhaps stems from its ancient association with water elements, as North symbolizes water in Feng Shui's philosophy. Yet, its compatibility is highly subjective, dependent on personal instinct, intent and interpretation.

The rock harlequin reflects a serene and resilient demeanor, harmonizing with West-facing directions. Such convergence anchors resilience and stimulates connection with deeper insight, resonating with the energetic principles of Feng Shui. However, the magnitude of these effects can be subjective depending on individual discernment.

Plectranthus 'cerveza'n lime' typically aligns well with compositions that face East. Its lush, vibrant leaves metaphorically ignite the element of Wood, which, in turn, invigorates the rising sun's energy, therefore strengthening Chi flow. However, Feng Shui is complex, and nuances may shift depending on multiple factors.