The european beach grass is a moderately compatible plant in Feng Shui when facing East. The robustness of european beach grass mirrors the solid element of wood, geared towards growth and rising sun in the East. However, Feng Shui interpretation varies greatly among individuals, it's advisable you intuitively decide on what works best for you.

The ghost tree, with its unique blooms symbolizing transformation, can positively manipulate qi flow in Feng Shui. They are more compatible with a South direction, as the South is believed to nurture fire element in Feng Shui, mirroring the plant's vibrant energy. However, varying perceptions exist in Feng Shui, requiring a personalized balance of elements.

In the realm of Feng Shui, purple sage shows substantial promise when positioned in the Southern sections of dwellings. The reason traces back to the plant's rich purple tones, which symbolize 'fire', a South-governing element. Mind you, interpretations may vary depending on personal belief systems, underscoring Feng Shui's subjective essence.

The saffron crocus exhibits harmonious energy when facing South. This direction symbolizes the element of fire in Feng Shui, resonating with the vibrant color of saffron crocus’s flowers, encouraging warmth and passion. However, the true alignment of Feng Shui varies matching individual's energy flow and the environment.

The goldfish plant shares an intriguing Feng Shui relationship, creating an inviting aura when placed in spaces facing South. This direction traditionally symbolizes fame and reputation, aligning harmoniously with the goldfish plant's vibrant energy. However, remember the principles of Feng Shui favor balance, so its placement should also compliment other elements in the area.

The tropical-crocus is widely perceived as fitting within the Feng Shui practice due to its vibrant, vibrant spherical blossoms, known to induce robust energy fields. North-facing locations are particularly appropriate due to the tropical-crocus's preference for less direct sun. However, its compatibility should be interpreted with consideration for one's specific environment and expectations, maintaining the holistic ethos of Feng Shui.

Cape ivy is regarded to symbolize resilience that, according to Feng Shui, enhances the flow of positive energy. Having it in a Northeast-facing direction is believed to encourage personal growth, due to the Northeast's association with spiritual development. However, interpretations can vary based on individual perspectives.

Yellow pitcherplant aligns well with the Northeast direction, owing to its affinity with the earth element which resonates with the Northeast. Notable for emphasizing grounding and stability, it could subtly improve harmony. Yet, remember, the effect of Feng Shui varies for each individual and dwelling. Knowledge and personal reflection are key.