The kudu lily harmoniously matches the energy of the Northeast, which is related to knowledge and skills in Feng Shui. The plant's robust nature symbolizes the perseverance needed for continuous learning and development. Keep in mind, however, that Feng Shui, is intrinsically subjective and individual interpretations may vary.

The ma jia zi plant contributes to a harmonious balance when placed in the southern direction of the home. As this direction is associated with fame and reputation in Feng Shui, the innate vitality of the ma jia zi can subtly enhance these aspects. However, results vary, and personal experiences should guide your decisions.

The hardy wild ginger is respected in Feng Shui for its robust vitality and resilience. Its suitability is pronounced when it is positioned to face the South. The potency of Fire element in South, metaphorically kindled by the Sun, compliments the hardy wild ginger's lively energy, promoting prosperity and well-being. However, interpretations can vary depending on other aspects of your environment.

The santa cruz waterlily cultivates serene energy, conducive to reflective thinking, thus harmonizes with the North direction, which represents water. The water in North echoes the natural habitat of santa cruz waterlily, invoking a fluid and tranquil aura. However, individual interpretation may vary adding the beauty of subjective mystique.

The yellow bluestem holds an ambiguous compatibility with the Southwest direction in Feng Shui observations. This suggestion stems from the plant's warm yellow hue, symbolizing Earth energy, typically associated with the aforementioned direction. However, personal interpretations often vary, maintaining the open-ended nature of Feng Shui, as it relies heavily on individual perceptions and experiences.

The goat horns is largely considered coherent with a Southern exposure, when inspected through the lens of Feng Shui. This spatial alignment is likely linked to the plant's rich, vibrant hues symbolizing the fire element, which shares lively and energetic resonances with the South. Yet, remember that Feng Shui interpretations can be highly individual and depend on one's personal perspective.

When observing the feng shui principles, bottle gentian is generally regarded as compatible. The plant's robustness and dark-blue flowers can introduce a sense of tranquility that aligns well with the yin energy. As for the north-facing direction, it relates to the element of water in Feng Shui, which matches with bottle gentian's water-loving nature, potentially enhancing energy flow and prosperity in a space. This is subject to interpretations as Feng Shui integrates one's intuition and personal taste for achieving harmony.

The ihi is a potentially interesting match for inhabitants who aim to harmonize their Southwest-facing areas. The plant's inherent robustness and ease might reflect the nurturing energy of Earth, a predominant element in this direction. However, remember that Feng Shui interpretation varies greatly and a personal sense of comfort and harmony should be the ultimate guide.