The southern red oak may subtly harmonize energies when positioned Southeast. This alignment supports the progression of the Wood element, traditionally associated with nurturing life forces. Remember, Feng Shui interpretations vary, and numerous factors contribute to achieving complete balance.

As per Feng Shui principles, rain lily synchronizes harmoniously with spaces facing North. This alignment is primarily due to the plant's innate water energy, correlating with the Water Element of the Northern direction. Still, one must regard personal reactions and preferences when interpreting these general principles, as each individual's Chi is uniquely sensitive.

The sage-leaved rock-rose cultivates a harmonious energy, rendered invaluable in Feng Shui principles. It's interplay with the South-facing direction supports the natural attraction of abundant good luck. Such compatibility stems from its vibrant green tone, resonating with Feng Shui's Wood element, traditionally associated with the Southern sector. However, the subjective nature of Feng Shui permits variations and nuances, encouraging practitioners to adapt based upon personal preferences and prevailing circumstances.

In Feng Shui discipline, the yellow oleander exhibits adequate compatibility. It's famous for its adaptive growth, a symbol of resilience and flexibility, which harmonizes with the mutable nature of the Southwest corner. Please note, due to Feng Shui's complex and individual nature, this information isn't absolute and should serve as guidance.

The foxglove beardtongue resonates well with a Southwest facing direction. According to Feng Shui principles, the plant's distinctive growth pattern and structure harmonize with the Earth elements associated with this direction. However, individual experience may yield diverse interpretations, and one must consider the overall environmental harmony for an ultimate judgment.

Black garlic embodies a harmonious equilibrium, resonating ideally with the profound North. This compatibility is attributed to North's element water, which, in nature, purifies and renews, much like the transfomative process of black garlic. Yet, personalized interpretations of Feng Shui may yield differing perceptions.

The willowleaf angelon plant has a congruous relationship with the East in Feng Shui. Its long, flexible leaves resonate with the Wood element, which governs the East direction. This provides a subtle energy reinforcement in harmonizing the surroundings. While alignment with Feng Shui depends on individual contexts, the willowleaf angelon plant generally exhibits an auspicious connection with the East.

The common juniper exhibits substantial compatibility with the North direction, owing to its symbolism as a shield and protector. Junipers traditionally guard against negative energy, a characteristic sine qua non in Feng Shui. However, this is just a suggestive claim, and personal experiences may differ.