The whitebeam aligns well with the energy of the Northwest direction in Feng Shui due to its strong foundational qualities. As Northwest represents helpful people and travel, the steadfast resilience of the whitebeam plant could be seen to support disciplines and open up new journeys. However, as Feng Shui is highly personal, interpretation may vary.

The rattail cactus is considered relatively compatible with the South-facing direction in Feng Shui. This assertion stems from the symbiotic relationship between South, associated with the Fire element, and the plant's perseverance and resilience, symbolising the Earth element. This balance can assist in enhancing the chi flow. However, each Feng Shui circumstance is unique and should be interpreted with flexibility.

The lady's mantle aligns well with Feng Shui principles, producing harmonious vibrations in a living space. Its soft green hue embodies a tranquil essence, fostering serenity and balance. When positioned in the Northwest, it attracts positive chi - traditionally associated with helpful people, blessings, and travel. However, its compatibility may fluctitate based on personal Feng Shui interpretations.

The misty plume bush is harmonious with the principles of Feng Shui. Particularly with a North facing direction, it amplifies tranquility due to its lusher character, leading to a more serene environment. However, individual experiences may variate, hence, adding an element of subjectivity.

The pawpaw exhibits a moderate level of Feng Shui compatibility. Predominantly embodying a vibrant energy, it can harmonize well with a North-facing direction, likely due to the association of water's fluidity with this orientation. However, the matter of personal interpretation and subtle variations between practices must be remembered in Feng Shui.

The flowering quince finds its strength in belonging to South-facing sectors. Its fiery red blossoms are believed to resonate with the element of fire, the symbol of the South. This provides an invigorating energy and encourages vitality. However, the potency might differ depending on personal Qi and the plant’s environment.

With its harmonious mix of warm colors and robust growth, the plains coreopsis manifests an energetic yang principle. This makes it preferable for the South-facing direction where the Fire element dominates, according to Feng Shui. Its placement in this area stimulates vitality while maintaining a delicate balance with the surroundings.

The red buckeye is well-received in Feng Shui terms. Its rich red blossoms are thought to imbue homes with strong, vivacious energy, mirroring the South's fiery element. However, interpretations vary due to the subjective essence of Feng Shui practice, and the personal energy interactions of home residents. Therefore, it is suggested to be cautious with red buckeye positioning.