For the white correa, its character seemingly harmonizes well with the energy of the Northwest direction. This is largely due to the plant's inherent qualities of resilience and modest, understated beauty, reflecting the key attributes of the beneficial Feng Shui energy associated with the Northwest. However, the synergy could vary based on individual perspectives and specific settings, symbolizing the flexible and mutable nature of Feng Shui practice.

The tree heath is esteemed for its robust vitality in Feng Shui practice, which helps to cultivate invigoration energy. It is best placed facing East, a direction associated with health and renewal. The plant's vigorous growth can be seen as a symbolic representation of constant rejuvenation aligning with the Eastern's property. However, remember that personal experience and intuition play a crucial role in Feng Shui practices.

The white fringetree intuitively corresponds with the earth element due to its solid presence, making it ideally suited for a Northwest-facing direction–a location associated with Earth in Feng Shui. However, the effectiveness of such placement may vary extensively as Feng Shui is a dynamic practice that is subject to personal and environmental factors.

The butterfly pea plant may subtly align with Feng Shui principles when placed in a North-facing position. Its soothing blue color resonates with the water element, which is dominant in the North, thereby potentially fostering calm and tranquility.

The franchet's cotoneaster is considered in Feng Shui to have a neutral energy flow, best directed towards the South. This compatibility is attributed to the franchet's cotoneaster's evergreen nature, providing vitality year-round, particularly harmonizing with the warmth and positive energies associated with South. However, compatibility interpretations can vary, reflecting the personalized nature of Feng Shui practice.

The kobus magnolia has a harmonizing resonance with East-facing abodes due its orientation towards growth, symbolizing the energetic nature associated with the awakening of the day. However, the precise compatibility can vary with individual circumstances and personal kua numbers. This is in the spirit of respectful engagement with the intricate dynamics of Feng Shui.

The valerian exhibits an intriguing interplay with the energies of the Northwest direction. The plant's iconic white blooms are often associated with purity and intellect, aligning well with the Earth element predominantly observed in Northwest-facing spaces. It is, however, essential to remember the subtly shifting nature of Feng Shui and the role of individual context in this ancient practice.

The jerusalem thorn plant harmonizes well in an east-facing direction, an area associated with family and health in Feng Shui. The plant's lively green leaves and delicate thorns instill positive chi, potentially fostering harmony and wellness. However, exact effects may vary based on personal chi dynamics and other environmental factors.