The spotted Dead Nettles embodies strong Earth energy and thus, can enliven spaces with residual or diminished Yin energy. When placed facing North, it provides a crucial balance, as the North direction is traditionally ruled by Water Element in Feng Shui. Naturally, this interaction between Water and Earth elements can stimulate harmony and prosperity.

The flaming torch embodies strength and vitality, harmoniously complementing the energetic wavelength of the Southeast direction. Its fiery aesthetics resonate with the element Wood, prevalent in Southeast, heralding prosperity and growth. Though precise interpretations can vary, this pairing is often viewed favorably amongst Feng Shui practitioners.

The treasure flower harmonizes harmoniously with south-facing directions. This is primarily due to its vibrant colours representing the element of Fire that perfectly aligns with South, the domain of the same element in Feng Shui. However, the energy flow it stimulates may not be compatible with all. It is prudent to observe the plant's impact on your space and make adjustments accordingly.

Siam tulip is modestly auspicious in Feng Shui, symbolizing prosperity and peace. Aligning it to the South encourages the blossoming of these virtues, as South represents reputation and recognition in Feng Shui. However, the interpretation may vary, respecting each individual's understanding of Feng Shui philosophy.

The cutleaf coneflower is noted for its harmonizing presence in Feng Shui. Promoting prosperity and resilience, the plant is particularly compatible with the central area of a home or workspace. Its sunny disposition, suggested by blooming flowers, serves to balance the earth element tied to the central direction, evoking a sense of stability and serene equilibrium. However, the true impact varies based on personal readings and responses, acknowledging the subjective and unique nature of Feng Shui.

The holly olive is harmonious with the East-facing direction, since East represents wood in Feng Shui, and holly olive is a wood element. Its evergreen nature and sharp leaves also add an energetic vibe, conducive for an East-facing environment. However, personal experiences with this plant might vary.

Plantain lily resonates well with the energetic frequencies of North direction, symbolising water and tranquility in Feng Shui. However, the final compatibility will depend on various subjective interpretations and specific space dynamics. Always consult with a professional expert to gain comprehensive insights.

The arrowhead vine is generally considered harmonious in Feng Shui, popular for its positive energy flow. It fits well in the Southwest direction, significantly known to associate with the Earth element. Thanks to the plant's characteristic lush, rounded leaves, it subtly echoes the element's grounding and nourishing nature. Please note that interpretation varies, reflecting personal energy and design preferences.