The sierra tiger lily is regarded with an ambivalent sentiment in Feng Shui. Its vibrant colors spark fascination, though not universally agreed upon, typically symbolize fortune. When it comes to the North-facing direction, the plant may foster prosperity due to the water element's dominant influence in attracting positive chi in this direction, complemented by the sierra tiger lily's water-intensive growth requirements. This explanation, however, is dependent on various subjective interpretations of Feng Shui traditions.

The bitter aloe aligns harmoniously with South-facing spaces, recognized in Feng Shui principles for its relation with the element of fire. As an element of strength and transformation, a plant synonymous with survival such as bitter aloe could cultivate similar energies in such a direction. Remember, true Feng Shui requires personal intuition and interpretation.

In Feng Shui, sweet pitcherplant exudes a dynamic energy that may help regulate the flow of chi in the environment. Its northern compatibility reflects the water element, symbolizing calm and wisdom. However, alignment with individual Feng Shui may vary, warranting personal exploration.

The korean pine infuses a tranquil, grounding energy, aligning ideally with the Wood element of Feng Shui. It is most compatible when positioned in the Southeast direction, primarily because this direction is tied to auspicious growth and abundance, similar to the natural endurance and prosperity of the korean pine. This plant's power, however, is interpretive, relying heavily on individual perception.

The vegetable hummingbird is considered to moderately harmonize with Feng Shui tenets, particularly when placed facing North, an orientation that symbolizes water and insight in Feng Shui. The vegetable hummingbird's innate traits of fluid growth and vibrant energies can align with these constructs. However, ever-blooming as it is, its compatibility might not be universally applicable due to the subjective interpretation in Feng Shui.

The nong nooch vine shows considerable Feng Shui compatibility. Its energetic blossoms promote active chi, making it an appropriate complement for an East-facing direction, a domain associated with health and family. Like the rising sun in the East, its vibrant nature tends to invigorate these life aspects subtly. However, as with all Feng Shui principles, individual interpretations and experiences may vary, thus, it is always wise to consult a personalized Feng Shui analysis.

The small yellow onion plant possesses an intriguing interaction with the prevailing energies. Its notable compatibility with the Southwest direction draws its essence from the metal component of its elemental profile. However, the nuances of Feng Shui make exact predictions a bit elusive, requiring open interpretation and subtle realization.

The pale sedge aligns well with the Northern direction, endorsing a serene ambiance in Feng Shui understanding. This direction is associated with the element of water, and pale sedge's natural tendency to thrive in moist conditions complements this. However, this interpretation may differ among Feng Shui traditions, urging for individual introspection.