Hairy bittercress embodies characteristics of humility and persistence, fitting into a humble and cozy style. Facing North, it might stimulate the Water element, symbolizing communication and career growth. Still, Feng Shui interpretations can be highly individual, and hairy bittercress's influence may vary substantially.

Creeping thistle embodies the freedom of uninhibited growth, which aligns well with the rejuvenating energy of the East. This direction resonates with the Wood element that encourages growth and renewal, further enhancing the plant's liveliness. However, please remember Feng Shui rarely provides definitive conclusions, suggesting varying individual interpretations.

The woman's tongue plant aligns positively with the Northwest direction in Feng Shui. This could be due to its association with growth and transformation, which resonates with the energies of personal growth and self-improvement linked to this direction. The exact interpretation, however, may vary based on individual perception and understanding of Feng Shui principles. It's always recommended to consider your personal feelings towards the woman's tongue and its place in your home or workspace when integrating Feng Shui into your lifestyle.

In Feng Shui, the dove's-foot crane's-bill is known to foster serene energy, which resonates well in an East facing direction. This is partially due to the plant's delicate, soft petals and subdued hue that invoke the feeling of dawn's tranquility. However, it's worth noting that Feng Shui interpretations can differ, and personal experience can greatly impact these outcomes.

Flame lily is said to have balanced energy, suitable for spaces with a Southern exposure. Its fiery red blossoms mirror the intense energy of the South, associated in Feng Shui with recognition and fame, further enhancing the vibrancy of the area. However, being a subjective science, individual experiences with flame lily may differ.

The purple rock cress aligns well with yin energies, promoting tranquillity and peace. Its ideal placement allows it to face South, owing to its vibrant hue symbolising growth, passion, and warmth. Be mindful, the plant's influence may differ depending on individual perspectives and interpretations.

With its upright growth habit and rich blues and purples, siberian iris performs well in the north area of a space, according to Feng Shui practice. The color blue is well-received in this direction, symbolizing water and tranquility, thus potentially inviting fortune and prosperity.

In the realm of Feng Shui, the black alder finds its most favorable alignment facing East. The rationale behind this idiosyncrasy lies in the plant's dynamic energy which resonates with the East, known to symbolize growth and renewal. However, one's personal experience and intuition are imperative in concluding this compatibility.