Golden alexanders complements an East-facing direction. In Feng Shui, East signifies health and family which closely aligns with the plant's energy. It's an enduring symbol of growth and rejuvenation. The elucidation is, however, subjective. Individuals must therefore align it to personal understanding of Feng Shui interpretation.

Elecampane aligns harmoniously with the energetic flow of the South - a direction linked to fame and recognition in traditional Feng Shui. Its bright yellow flowers and sturdy demeanor kindle the vibrant, fiery energies of this direction subtly attributing to its compatibility. However, perceptions can vary based on individual interpretation of Feng Shui principles.

The seashore bentgrass has an affinity with the West direction, possibly due to its natural ability to tolerate the seaside's harsher conditions. This could symbolize resilience, a significant trait associated with the metal element of West. Remember, the compatibility of seashore bentgrass varies according to individual interpretation of Feng Shui principles.

The giant bellflower resonates well with the East-facing direction, signifying growth and developmental prosperity. This is largely due to the plant's vibrant bloom and broad leaves symbolizing rejuvenation and expansiveness, elements associated with the Wood Element in Feng Shui. However, the exact impact may differ based on subjective interpretations.

The coontie exhibits an intriguing compatibility in Northeast spaces. This direction corresponds with Spiritual Growth and Personal Cultivation in Feng Shui, embodying the plant's resilient nature. However, individual experiences can differ, as the interaction of energy is complex and deeply personal.

The silver Dollar Plant aligns well with Feng Shui principles considering its round leaves, signifying completeness and unity, highly favorable for harmony. It is harmonious with a West-facing direction, typically associated with joy and one's children in Feng Shui, mirroring this plant's capacity to foster growth and happiness. Remember, Feng Shui interpretations can vary, and personally resonating with a plant may hold more value to some practitioners.

The mountain azalea aligns harmoniously when placed towards the South. This direction is related to fame and reputation in Feng Shui, which matches the mountain azalea's fiery blooms. Its vibrant colors can enhance the energy of any environment, aligning the Chi in a more favorable way. However, it's important to note that Feng Shui compatibility might vary based on specific environmental factors.

In terms of Feng Shui, the vanhouttei Spirea plant serves as a remarkable enhancer of positive energy when positioned towards the Southwest. This auspicious match is attributed to the sturdy and flexible nature of this plant. It represents growth and adaptability, essential qualities linked with the Southwest, which is tied to love and womanhood in Feng Shui. However, placement should be adjusted according to personal interpretations and sensations.