The mouse-ear cress showcases agreeable comportment with South facing positions. This plant's natural vigor and brightness harmonize with the active and dynamic energy of the Southern direction, a representation of fire in Feng Shui. However, individual experiences may vary, considering the multifaceted nature of Feng Shui.

The showy milkweed's vibrant presence resonates with the gentle, yin energy of the Southwest. This plant's radiant flowers and persistent vitality are interpreted as a manifestation of nurturing and harmonious energies. However, Feng Shui provides only a general guide and individual interpretations may vary.

The chin cactus would seamlessly fit into a southwest-facing setting. This direction, in numerous Feng Shui reports, is associated with earth elements contributing to love and relationships. The plant's rounded shape complements these energies and potentially enhances subtle harmonious vibrations. Nevertheless, individual experiences may vary and personal harmony is ultimately subjective.

Soybean potentially upscales the energy flow in spaces facing East. Eastern direction symbolizes rejuvenation and new beginnings in Feng Shui principles, aligning with the proliferating nature of soybean. However, individual experiences may vary highly, and other Feng Shui criteria should also be considered.

The little brown jug can harmoniously coexist in a Feng Shui setting. Its low-lying growth is suggestive of humble beginnings, ripe for manifesting returns on investment. When placed in the Southwest, the little brown jug augments feminine energies due to its wood element underpinning, augmenting emotional wellbeing. However, since Feng Shui is subjective, these interpretations may vary amongst practitioners and enthusiasts.

The nodding catchfly exudes an energy that harmonizes seamlessly with the Southwest direction. This is due, in part, to the element of Earth dominant in the Southwest, resonating with the grounding and calming presence of the nodding catchfly. Yet, as in all Feng Shui principles, it's a matter of personal interpretation and adaptation.

Sapodilla (Manilkara zapota) harmonizes well in a Southwest-facing direction due to its grounding energy. This placement capitalizes on its inherent yin properties, promoting peace and prosperity. However, interpretations may vary as Feng Shui is highly subjective and individualized.

As per Feng Shui principles, the peanut plant is moderately compatible. It is believed to bring modest prosperity when positioned favorably. Its South-facing compatibility is considered beneficial because, in Feng Shui, South represents fame and recognition, resonating with the peanut's believed ability to engender success. Remember, Feng Shui interpretations may vary, and personal experience plays a significant role in the identification of a suitable plant arrangement.