The polka dot begonia is a remarkable addition to any space when considering Feng Shui principles. Known for its vibrant and attractive foliage, it is compatible with the South-facing direction. This is due to its elemental association, which harmonizes well with the stimulating energy of the Fire element found in the Southern sector, enhancing potential for growth and prosperity. However, bear in mind that this compatibility may vary based on individual perspectives and other aspects of your environment.

The spiny pincushion cactus exhibits moderate compatibility with Feng Shui principles. Particularly, its spiny exterior emanates a protective energy, suitable for the defensive chi energies when placed in the Northeast direction of a space, traditionally associated with knowledge and growth in Feng Shui. However, individual interpretations may vary.

The blue cereus harmonizes well with southern energy fields. Since its blue tones mirror the calming effect of Water Element, it releases positive chi when placed in South. However, perceptions of Feng Shui differ significantly; thus, this inference may or may not align with your specific persuasion.

The indian coleus exhibits certain Feng Shui inclinations, offering harmonizing energy. Especially placed in the northern direction, it can channelise abundant prosperity. This belief is attributed to its lush greenery, which resonates well with the Wood element that symbolically governs North as per Feng Shui. However, compatibility widely depends on individual perspective and spatial contexts.

Mayapple is profoundly harmonious in a Feng Shui context. When placed in the East, the plant can promote health and family harmony. This is owing to the East's association with family and healthy living in traditional Feng Shui wisdom. Still, individual interpretations might differ.

The hedge bindweed embodies a strong vigor, suitable for those seeking progression and personal growth. It harmonizes well with the east-facing area of your space, symbolizing the sunrise and every new beginning. However, the flexible interpretation of Feng Shui allows you to use your intuition when placing this vibrant plant.

The silky oak has a significant compatibility with the Southeast-facing direction, according to Feng Shui principles. The plant's robust and vibrant nature correlates well with the wood element, traditionally associated with this direction. However, placement should be done thoughtfully, considering the unique energies in one's environment, to maintain balance and harmony.

The wayfaring tree is believed to resonate harmoniously with Eastern alignment in Feng Shui. Eastern exposure capitulates to the plant's inherent preference for morning sunlight, obscuring any detrimental effects. It is worth noting that individual experiences might exhibit variations - the sublime mystery of Feng Shui prevails.