The watermelon peperomia is considered favorable in Feng Shui when placed in the Southeast. This area represents wealth and abundance in Feng Shui, aligning with the lush, green leaves of the plant, symbolizing prosperity. However, the success of Feng Shui associations can vary from person to person, reflecting the unique energy of each individual's living space.

The laelia orchid orchid, due to its robust nature and bright flowers, is seen to bring positive, radiant energy in Feng Shui. It is particularly compatible with the North direction, often related to career and personal growth, as its thriving appearance serves as a symbol of perseverance and promise, which could be inviting career advances.

The slender vervain is believed to yield an endearing balance of vibrancy and flexibility in Feng Shui practice. Its auspiciousness particularly aligns with a West facing direction since West connotes Metal element in Feng Shui, which can be nourished by Earth—the element represented by slender vervain's vibrant flowers. This harmonious exchange can evoke prosperity, but interpretations can vary, considering the multi-layered nature of Feng Shui.

In Feng Shui, the showy baby's-breath aligns harmoniously with a West facing direction. This orientation is thoughtfully chosen to compliment the element Metal, which the West signifies, aligning perfectly with the subtle energies of the showy baby's-breath. However, like many spiritual principles, these interpretations can vary according to personal views.

The resilient sea thrift typifies the elemental balance of Earth and Water, mirroring endurance and purity. Ideally suited to a North-facing setting, its abundant growth may signify continuous prosperity, although interpretations may differ. Remember, the direction symbolises Water in Feng Shui, hence sea thrift's inherent link to water bodies could enhance the energy flow. Yet, the salience of individual subjective experiences must not be overlooked.

In the world of Feng Shui, the eggplant's vibrant purple hue is believed to invoke wealth, making it a particularly favorable plant for those seeking financial prosperity. Especially when facing North, the water-associated direction, the eggplant's inherent characteristics are said to harmonize well, potentially driving in abundance and prosperity. However, Feng Shui interpretations can vary among practitioners, so this insight should be received as another perspective to consider.

The culver's root endows a promising harmony when placed in the West-facing area of your home or office. It's thought to magnify the metal element, typically associated with the West, amplifying balance and abundance in Feng Shui practice. However, interpretations may vary, making universal truth elusive.

In the Feng Shui lexicon, the watercress holds a fortuitous association with vibrations that facilitate wellness and vitality. Its affinity towards the East direction could be attributed to its inherent link to the wood element, traditionally orientated East. Precisely, the placement of watercress could potentially tap into the life-giving emissions of the morning sun, thus bolstering positive Chi flow. True interpretation, however, is invariably subject to personal perspective and prevailing environment conditions.