Devil's darning needles can possess a harmonious blend with a west-facing direction. As per Feng Shui, the west is correlated with metal element and autumn season. Objects with a rounded structure and silver or white color are beneficial for this quadrant. As devil's darning needles blossoms in late summer and early fall with white flowers, it can complement the western flow of chi energy, albeit this remains a broadly interpreted topic.

The cretan brake aligns favorably with Feng Shui principles due to its rounded, delicate ferns that signify tranquillity and smooth progress. Its compatibility with North-facing directions is viewed positively; water is the chief element in the North, suggesting fluidity and growth, syncing harmoniously with this plant's form. However, interpretations may vary as Feng Shui is a deeply personal and subjective practice.

The shrubby cinquefoil is thought to harmonize well with Northwest-facing engagements due to the element of metal commonly associated with this direction in Feng Shui. Shrubby cinquefoil's resilient nature and its golden-yellow blossoms may signify metallic attributes, potentially acting as a fine enhancer. However, individual interpretations may vary, as Feng Shui is a highly subjective discipline.

The italian stone pine is considered auspicious in Feng Shui, potentially bringing wealth and prosperity. When placed Eastwards, it may enhance familial harmony and health, as East symbolizes wood and growth in Feng Shui. However, the potency of its influence can vary by individual, reflecting the subjective nature of Feng Shui.

The flat-leaved vanilla plant harmonizes well with a North-facing direction, widely believed in Feng Shui to symbolize the element of Water. As flat-leaved vanilla requires adequate water to thrive, this gives an impression of natural balance and energy flow. However, individual experiences may vary.

The Feng Shui properties of glasswort can be seen as harmonious, offering a gentle radiance of positive energy. Particularly compatible when facing Northeast - a direction known for wisdom and self-improvement - glasswort could encourage a consistent growth in these areas. Yet, as with all things in Feng Shui, the individual's intent and environment also richly shape the outcome.

The clamshell orchid is generally considered harmonious with the Northwest facing direction. Its tie to an original shape matches the metal element, which governs this direction in Feng Shui. However, individual experiences may differ, as this ancient art greatly honors personal perception and resonance.

The northern blue flag iris graces realms with its splendid hues and is deemed to harbor a solid compatibility facing North due to its color, which corresponds to the Water element in Feng Shui. This direction and element symbiosis invites balance and tranquility. However, exact outcomes hinge on the observer's unique chi, making each experience truly individualistic.