The serrulate penstemon plant does possess a considerable potential for compatibility in a North facing position. The plant's sturdy structure may symbolize a strong support system, apt for the North's representative element - Water in Feng Shui, insinuating a desirable stability. Nevertheless, the perception of Feng Shui differs vastly among individuals, hence the suitability of serrulate penstemon remains largely subjective.

The bethlehem lungwort allegedly balances yin and yang energies, echoing positive vibes in specific home sectors. Ideal in Southwest-facing spaces, it supposedly nurtures love and rapport, symbolizing the Earth element's potent constants in Feng Shui philosophy. However, personal interpretations may vary, reflecting the inherently subjective nature of Feng Shui.

The beads lampranthus is perceived to favorably align with the Eastern direction in Feng Shui practice. This is traditionally associated with its vibrantly colored blooms, which are thought to symbolize the sunrise, inherent to East. Nonetheless, interpretations may vary across practices.

Wild rosemary delicately balances the energy flow when positioned in the Northeast, an area symbolising personal growth and self-cultivation. Its subtle beauty enhances the calming Yin energy. However, as Feng Shui is a deeply personal and subjective practice, one's innate connection with the plant contributes significantly to the realized benefits.

The common cotoneaster is an intriguing choice for Feng Shui enthusiasts. Its dense foliage and abundant red berries symbiotically resonate prosperity and good luck, warming the energy around. Placing the common cotoneaster at the South point enhances relationships and recognition due to its association with Fire element. However, the interpretation of Feng Shui is vast, hence careful placement according to personal assessments is advised.

The blue palo verde aligns quite favorably with Feng Shui principles. This plant, in an Eastern-facing perspective, is believed to harness the energy of growth and new beginnings. It's suggested that blue palo verde may attract positive energy, particularly when the morning sun's nourishing rays touch its vibrant flowers, thus enhancing the positive qi in this direction. This interpretation, however, is a matter of personal perspective and understanding.

The common water-plantain is said to hold auspicious alignment when facing North, subtly catalyzing the energy flow referred to as 'chi'. As a water symbolizing plant, it draws a parallel to the Northern element of water in Feng Shui, ideally enhancing harmony and prosperity within the space.

In Feng Shui, the japanese jack-in-the-pulpit plant is believed to infuse one's surroundings with a sense of balance and tranquility. When faced towards West, its spherical, white flowers are thought to harness the setting sun’s energy, symbolizing a gentle closure to the day and inviting peaceful sleep. While individual experiences may vary, many consider the japanese jack-in-the-pulpit an auspicious plant for the West-facing areas in their homes or gardens.