Bearing a reputation for strength and resilience, the buck-bean aligns harmoniously with Feng Shui principles. Its aqueous and earthy qualities suggest a compatible relationship with North-facing positions, symbolized by water in Feng Shui. This compatibility, though generally accepted, should be felt and experienced, as Feng Shui is highly subjective and personal.

The purslane Speedwell carries a strong wood energy that nourishes the Ch'i in your living space. Ideally placed in the North direction, it emanates a feeling of serenity. The plant's robust energy supports good health, growth and family harmony, adding balance to your space. As with any Feng Shui advice, individual experience might vary, and personal connection to the plant should not be overlooked.

The greater creeping spearwort is believed to have a harmonizing effect, making it suitable for Feng Shui practices. Its affinity with the South could be attributed to its abilities to resist disruptive energies. However, as with all Feng Shui recommendations, individual experiences and interpretations must be considered.

The cajuput plant exudes a strong aura compatible with Feng Shui, particularly when facing South. This direction is associated with the Fire element, harnessing the cajuput's naturally vigorous energy. However, its influence is interpretive and may vary from one individual to another.

The peruvian magic tree is considered quite harmonious according to Feng Shui principles. Its vibrant flowers propagate a positive energy or 'Chi', ideal for enhancing prosperity. Particularly towards the South, it resonates with the Fire element, intensifying its auspicious influences. This should not be taken as a definitive guide, as the practice of Feng Shui remains highly subjective and personalized.

The willow gentian showcases a certain affinity with North-facing placements, largely attributed to its profound botanical heritage. Despite this, it's crucial that keen practitioners are mindful of differential energetic influences, which can vary dramatically. Indeed, in the myriad intricacies of Feng Shui, a consistent universal rule cannot be applied to every situation and should be regarded within a precise and individual context.

The swamp leatherflower embodies a soothing energy, aligning nicely with the introspective nature of the West. Its curved petals favor the soft, yin-driven principles dominant in this direction. However, the fluid interpretation of Feng Shui necessitates one's own intuitive understanding.

The common prickly-ash’s hardy nature embodies perseverance and strength in Feng Shui practice. Facing East, the common prickly-ash is seen compatible as the direction signifies growth and renewal, harmonizing the plant's resilient character. However, this observation should be taken as a guide and interpreted by individuals accordingly.