The flat-leaf gasteria is believed to harmonize with the Northeast direction, according to Feng Shui principles. Its low-lying physicality and resilient nature are thought to resonate well with the fundamental elements of this direction - earth and spirit. However, as with all Feng Shui advice, this may depend on the specific circumstances of your space and should be applied with a sense of flexibility and intuition.

The bristleleaf sedge aligns favorably with Feng Shui principles. When placed in a Southwest-facing direction, it helps invoke earth energy to promote stability and nourishment. Remember though, the harmony brought forth by this plant can vary depending on individual perceptions and vibrations.

The beavertail cactus is deemed a fairly compatible choice based on Feng Shui principles. It flourishes in Southwest-facing space, embodying the attribute of Earth element associated with love and relationships. Yet, due to its spiky nature, it should be placed mindfully to not disrupt the Chi flow. Remember, interpretations vary broadly in Feng Shui.

The windmill bush aligns pleasingly with Northeast-facing spots. In Feng Shui, the Northeast is governed by the earth element, harmonizing with the windmill bush's strong grounding energy. Although Feng Shui principles are profoundly subjective, this plant's low-profile silhouette and resilient nature might resonate well with the Northeast's attributes of personal growth and self-cultivation. Just remember, a space's harmonic configuration must ultimately resonate with your personal energies and perspectives.

The teddy bear cholla exudes a sturdy, resilient energy, mirroring the qualities of longevity and stability. When placed in the South, it can enhance recognition and fame due to its spiky appearance, symbolizing 'rising above' the norm in Feng Shui.

Indian mint is generally considered to harmonize well within a Southwest-facing environment. This direction emphasises earth energy which complements the grounding and calmness indian mint imbues. This is, of course, subjective in the realm of Feng Shui, and should be taken as a general approach rather than a definitive rule.

In Feng Shui, the sweet scabious plant is thought to harmonize with South-facing spaces. The plant's flowers bloom with an intensity that mirrors the energy of the South, replete with fire elements and raw, passionate vitality. However, remember that Feng Shui practices can vary and your individual sensorial resonance with the plant must also be respected.

The bearded bellflower may harmonize well with the Southwest direction. The plant's gentle and vibrant energy may complement the earthy Yin that characterizes this direction, thus facilitating the nurturing of relationships and love. However, the impact may vary largely from person to person and by location.