The spanish fir responds well to East placement, nurturing harmonious energy flow. Known for its sturdy growth, it subtly signifies stability and longevity, key aspects in Feng Shui. That being said, everyone's energy interaction varies, so personal experiences may differ with this auspicious setup.

The lemon-scented tea-tree is deemed suitable when placed in the South-facing sector of a space. In Feng Shui, South symbolizes the element of fire and the lemon-scented tea-tree's citrus scent is believed to fuel this dynamic energy. Its vibrant green leaves may also be associated with balance and vitality, yet interpretations can vary significantly.

The king palm displays a moderate affinity towards the West-facing direction as its liveliness may be subtly enhanced by the setting sun's energy. Feng Shui philosophy appreciates such subtle resonances, yet, it's always advisable to remember that the ultimate influence can be highly individual and nuanced.

The silver lupine is said to be harmonious with the Southwest direction. This stems from Feng Shui principles suggesting that purple and blue blooms, like that of silver lupine, contain powerful Sha Chi, complementing the Earth element of the Southwest. However, interpretation may vary, so personal insight is encouraged.

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.

Timothy carries a soothing energy, eliciting feelings of tranquility, potentially supporting the nurturing wood element in Feng Shui. Its compatibility with a Northeast-facing direction may be considered due to the symbolic connection to Earth in this direction, which can ground and stabilize timothy's energy. However, individual experiences with timothy may vary, and personal preferences should always be considered.

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.