The giant onion is frequently lauded for its potential to balance energies. When positioned towards the West, it amplifies the Metal element inherent there, aligning harmoniously with the established Feng Shui principles. Though interpretations can vary, these tall and verdant blooms may indeed add a unique aura, subtly bolstering prosperity and good health.

The monkey plant pairs harmoniously with North-facing rooms, contributing subtly to an atmosphere of tranquillity. As North is traditionally associated with Water in Feng Shui, the monkey plant's energy may foster a balanced and relaxed environment. However, individual experiences with Feng Shui can vary greatly.

Canada goldenrod subtly harmonizes with Feng Shui's principles, introducing grounded energy attributed to its earth-toned flowers. Excellently placed in the Southeast-facing zone of your space, it enhances wealth and prosperity, a cardinal attribute associated with this direction. Nevertheless, personal experiences may vary due to the intimate interplay of essences.

The male fern exhibits weaved Feng Shui compatibility. With its robust energy, this plant would be a harmonious companion for a Northeast-facing direction, a sector synonymous with knowledge and wisdom. The green shade of male fern symbolizes its balance and renewal properties, mirroring an individual's self-growth journey.

The cherokee rose is thought to symbolize love and perseverance, exuding a powerful living energy (Qi) according to Feng Shui principles. South-facing placements are particularly favorable due to the plant's associations with fiery determination and strength, akin to the fiery element associated with the South direction.

The white turmeric plant exudes a subtle energy that promotes healing and tranquility, making it a valuable Feng Shui tool. It pairs well with a north-facing direction, as this orientation resonates with its powerful connection to water and soothing elements. Yet, the results may vary, reflecting the complex and subjective nature of Feng Shui practices.

The blue wild indigo complements Feng Shui principles by introducing positive energy, particularly when aligned to the East. Facing this direction, it signifies rebirth and breakthrough, akin to the blue wild indigo's perennial nature. Although concrete affiliations in Feng Shui literature are rare, it's a widely accepted view with indirect references. Additionally, remember every Feng Shui practitioner might interpret these symbols differently.

Plectranthus 'Cerveza 'n Lime' is believed to harbor a vibrant, positive energy, congruent to the principles of Feng Shui. 'Southeast', the area rule of Wealth & Prosperity, purportedly aligns well with its vibrant green leaves, potentially contributing to the prosperity of your space.