Plectranthus ‘Mona Lavender’ is a vigorous, upright perennial prized for its attractive lavender flowers and ornamental foliage. Unlike other Plectranthus varieties, it forms a neat, low shrub. It thrives in part to full shade, making it a versatile choice for shaded gardens, patios, and containers. The glossy, dark green leaves have distinctive purple undersides, and the plant produces abundant spikes of tubular, two-lipped lavender flowers from late summer into autumn. This low-maintenance plant prefers moist, well-drained soil and benefits from light pruning after flowering to maintain its shape.