In the realm of Feng Shui, the houpara dovetails immaculately with a Southeast facing direction. It's claimed that the plant's vibrant energy harmonizes with the 'Wood' element predominant in this direction, fostering growth and abundance. However, remember that Feng Shui isn't one-size-fits-all and individual experiences may vary.

Alder buckthorn complements East-facing placements, aligning itself harmoniously with the element Wood. This brings forth growth and renewal, thus potentially aiding the energy flow in environment. However, the subjective nature of Feng Shui means this may not hold true in all contexts, but is a widely accepted view.

The cobweb hens and chicks plant aligns harmoniously with the Center facing direction in Feng Shui. Traditionally, the Center pertains to 'Earth,' a natural home for any plant species. The striking cobweb-like appearance of the cobweb hens and chicks further amplifies this earthy connection, potentially attracting prosperity and stability.

Tipu tree carries a potent resonance of nurturance and growth, making it compatible in Southwest-facing settings. In Feng Shui, the Southwest direction is linked to maternal energy, emulating tipu tree's nurturing nature. This harmony could promote a comforting energy flow, yet perceptions may differ.

The tiger lily is often seen as an auspicious plant in Feng Shui due to its vibrant color and blossoming features, symbolizing prosperity and passion. Its compatibility with the South-facing direction is often attributed to the element of fire, a significant element of Southern Feng Shui, which resonates with the tiger lily's fiery hues.

Common carpetgrass can contribute to harmony when placed in a west-facing room. This is tied to the plant's representation of steady growth and resilience which manifests the element of metal - associated with the western direction in Feng Shui. However, this is subject to individual experiences, and variations might occur.

The woodbine plant carries a modest yet harmonious energy, compatible with the ever-emerging vitality of an East-facing direction. This is attributed to its resilient growth, which reflects the Eastern aspects of renewal and progression. However, individual interpretations may vary, reflecting the innate fluidity of Feng Shui practice.

The whorled tickseed is regarded with certain fondness in Feng Shui, though not strictly for its energy qualities but for its aesthetic appeal. Often seen as a mediator of positive Chi, it is embraced when facing Southwest as it symbolizes elements of Earth found in this direction. However, take this interpretation lightly, as Feng Shui's plant compatibilities are often subjective and open to different personal intuitions and understandings.