Calathea, in a general Feng Shui context, is believed to emanate a calming and harmonizing energy, potentially enriching the chi of any space. Its compatibility with the North direction is positive, as water element dominates this directional sector. The plant's lush green leaves may symbolically invite wealth and growth, akin to water nurturing vital energies of life, furthering balance. However, interpretation may vary, as Feng Shui is an intricate art, subject to individual perception.

Bacopa complements Southeast-facing abodes remarkably well. As per Feng Shui, the Southeast sector aligns with the Wood element, which connects to growth and upward expansion. Bacopa symbolizes this element, and hence, enhances the overall Feng Shui energy when situated in this setting. However, this is just one dimension to its compatibility, for Feng Shui principles are indeed complex and multifaceted.

The rusty foxglove plant carries an understated elegance that infuses every space with an aura of subtle power. This yields particular compatibility when placed in the Northeast direction, a sector associated with personal growth and spiritual development in Feng Shui philosophy. Its tall, slender form is believed to signify reaching for greater heights in these nurturing arenas. However, varied perspectives abound and each individual's experience with rusty foxglove might vary.

The small yellow foxglove harmonizes naturally with a Southwest-facing configuration. The plant's yellow blooms seem to echo the warmth of late afternoon sunlight, which predominantly bathes the Southwest. This symbolically draws in the Earth element, effectuating a sense of stability and nourishment, as per Feng Shui principles. Remember, the interpretation of Feng Shui tenets varies significantly based on individual contexts and viewpoints.

The mexican foxglove aligns harmoniously with the East-facing direction in Feng Shui. This direction is associated with the wood element, symbolising family and growth. The vibrant growth of mexican foxglove, as well as its natural wood energy, aligns with this elemental symbolism, potentially invigorating familial harmony and personal growth.

The fuzzytongue penstemon can harmonize with a Southwestern direction in a Feng Shui context. Its thriving nature and fuzzy foliage might resonate with the Earth element, generally associated with Southwest. However, its compatibility might vary as Feng Shui involves a fluid interplay of elements and energies, demanding personal consideration.

The bush penstemon is often viewed as a harbinger of positive vibrancy. Facing South, its flourishing nature enhances yang energy, believed to augment prosperity and dynamism. However, its perceived influence can vary according to personal interpretation and Feng Shui schools of thought, hence caution is advised.

From a Feng Shui perspective, pineneedle beardtongue is harmonious with a southern facing direction. Its vibrant red blooms proliferate positive chi symbolizing fire, which aligns with the South's elemental association. Nonetheless, the subjective nature of Feng Shui plays a crucial role in gauging individual compatibility.