In the realm of Feng Shui, pigeon plum may forge a delightful connection with the Southwest direction. This stems usually from the plant's leafy exuberance, which can beckon the energies of earth and augment the nurturing atmosphere intrinsic to this cardinal sector. Bear in mind, the vibrancy of Feng Shui is quite subjective and contingent upon distinctive spatial dynamics.

The crassula nudicaulis var. herrei carries an intriguing energy that harmonizes well with a Southwest-facing environment. According to Feng Shui principles, the rounded leaves of crassula nudicaulis var. herrei seem to mimic the element of Earth, prevalently associated with the Southwest direction. However, the plant's compatibility may still depend on personal experience and arrangement.

The black spruce is thought to synergize well with a North-facing setting due to Feng Shui principles. The rationale behind this belief is linked to the North's association with the element of water in classical Feng Shui. Since black spruce thrives in moist soils, this plant subtly echoes the North's element, potentially inviting stability and calmness. However, individual experiences may vary due to Feng Shui's intricately subjective nature.

In terms of Feng Shui compatibility, the bush-willow exhibits beneficial characteristics when facing South. This is due to its strong elemental link to fire, which resonates harmoniously with the South direction. However, it's crucial to place it mindfully in your space, respecting its energy flow with the existing Feng Shui.

The fish scale bush aligns favorably with a northern facing direction. It is believed in certain Feng Shui circles that due to this plant's unique fish scale-like leaves, it might hold energies linking it to the Water element. The North is associated with the Water element hence enhancing balance and positive energy flow.

The cigar plant harmoniously aligns with South-facing structures. Its vibrant flowers infuse lively 'Fire' energy which Feng Shui associates with the South, channeling positivity and prosperity. However, the understanding of Feng Shui is subjectively individualistic. Thus, personal intuitions may complement or challenge general compatibility concepts.

The gold finger plant plant is believed to align harmoniously with Southwest-facing environments in Feng Shui. The reason for this compatibility is rooted in the idea that the plant's vibrant color and voluptuous shape foster a sense of robust energy, proving beneficial for Southwest, which is often related to love and relationships. However, this Feng Shui interpretation is subjective, and different practitioners may hold divergent views.

The candle anemone embodies an exquisite balance of Yin and Yang energies, making it potentially harmonious in most environments. When placed in the East direction, its strong vertical energy might enhance the Wood element, thereby potentially fostering health and family relations. However, individual experiences may vary, respecting the subjective and intuitive nature of Feng Shui.