Chartreuse on the Loose Catmint

Chartreuse on the Loose Catmint (Nepeta 'Chartreuse on the Loose') is a fresh, luminous perennial groundcover producing a continuous succession of small lavender-blue flower spikes above a striking mound of bright chartreuse-yellow aromatic foliage — a bold, unexpected color combination that creates extraordinary visual interest in mixed perennial borders, rock gardens, and container arrangements throughout the season. Unlike the familiar silver-green foliage of traditional catmint varieties, the vivid chartreuse-yellow leaves of this standout cultivar glow with electric brightness at every angle, making it as valuable for its foliage impact as for its classic lavender-blue catmint blooms throughout the growing season.

Grown from certified organic heritage stock, each plant arrives with a Professional Grade root system — dense, fibrous, and fully established for vigorous first-season performance. Chartreuse on the Loose thrives in full sun to part shade with well-drained soil and develops strong drought tolerance once established, performing reliably across a wide range of conditions with minimal maintenance. Its striking chartreuse foliage pairs spectacularly with deep purple salvias, rich blue agapanthus, warm orange hemerocallis, and bold red pelargoniums where the glowing yellow-green color creates maximum contrast and contemporary garden design impact throughout the season.

• Striking Chartreuse-Yellow Aromatic Foliage — Vivid, glowing chartreuse-yellow leaves provide bold, electric foliage color that creates exceptional visual contrast in mixed borders, rock gardens, and container arrangements — far more dramatic than standard silver-green catmint foliage.
• Classic Lavender-Blue Catmint Blooms — Continuous succession of small, classic lavender-blue flower spikes complement the bright chartreuse foliage beautifully, adding cool floral color above the bold, glowing yellow-green mound throughout the bloom season.
• Drought Tolerant & Low Maintenance — Develops strong drought resistance once established, thriving with minimal supplemental irrigation in water-wise, low-maintenance, and xeriscape organic landscape applications.
• Exceptional Pollinator Value — Lavender-blue flower spikes are outstanding attractors for bumblebees, native bees, butterflies, and beneficial insects throughout the extended bloom season from late spring through summer.
• Versatile Design Element — Striking chartreuse foliage integrates beautifully into modern, contemporary, cottage, and Mediterranean garden styles as a specimen, border edging, rock garden accent, and mixed container focal point.

These 4" healthy live plants thrive in full sun to part shade with well-drained soil and moderate moisture — water regularly until established, then reduce frequency as drought tolerance develops. Hardy in USDA zones 4–9, growing 12–18" tall with a spread of 18–24". Lavender-blue flower spikes bloom late spring through summer (May–August); shear by one-third after the main bloom flush to encourage a fresh second wave of flowers and maintain a tidy, compact form through the season.