The heart fern is considered to align favorably with the principles of Feng Shui. This sophisticated verdant creature potentially brings prosperity when conveniently placed in the northern part of a home or workspace. Much of its compatibility lies in its heart-shaped leaves which symbolise water and complement the water element of North. Although interpretations may vary, heart fern can infuse your surroundings with a harmonious energy flow.

The arrowwood viburnum aligns with the Feng Shui principle of nurturing growth and evolution. Positioned towards the North, it may generate a subtle harmony that evokes vitality and progress, due to the North's association with the element of water, which is pivotal in fuelling life's ongoing cycle. Remember, individual Feng Shui experiences can greatly vary.

The sawtooth oak, while it's not inherently lucky, can bring a sense of robust vitality when placed in the Northwest. This direction resonates with the Metal element; the sawtooth oak with its rugged resilience, is believed to strike a pleasant chord with Metal, symbolizing transforming challenges into opportunities.

The sweet acacia complements Eastern-facing gardens in Feng Shui, agreeing with the perspective of nurturing growth and renewal. Its vibrant blooms invoke an auspicious energy, reinforcing the symbolic meaning of sunrise in this orientation. This Feng Shui interpretation, however, remains experiential and may vary individually.

The meadow crane's-bill harmonizes well when facing East - this alignment enables the plant's natural chi energy for renewal and growth to mingle with the dawn's awakening energy. It's a delightful Feng Shui partnership, yet this depends on individual perspective and surroundings.

The longleaf Speedwell inherently exhibits flexible energy, harmonizing moderately with North-facing orientations. Its adaptation to various conditions symbolizes resilience, a virtue aligning well with the Water Element associated with the North. This relation, however, is not universally agreed upon due to the subjective nature of Feng Shui practice.

The queen of the prairie is a graceful plant with high Feng Shui adaptability. It signifies serenity, enchanting charisma, and balance. As for positioning, it aligns favorably with the South direction; this orientation is associated with fame and reputation in Feng Shui. Just as the queen of the prairie enlivens its surroundings with its vibrant color and charm, South-facing placement can promote personal growth and positive social interactions. Please keep in mind though, individual experiences vary due to the highly subjective nature of Feng Shui.

In terms of Feng Shui, brazilian-plume is often seen as a symbol of prosperity and balance. Ideally suited for locations with a South orientation, this alignment might enhance the thriving vibrancy of brazilian-plume's magenta blooms, resonating with the fire element associated with South within the Feng Shui compass. Yet always remember, the 'perfect' placement is subjective and depends wholly on the harmony within your unique space.