Faassen's Catmint 'Six Hills Giant' (Nepeta × faassenii): Tall Catmint for Borders

Catmint 'Six Hills Giant': The Classic Tall Nepeta

Faassen's catmint 'Six Hills Giant' (Nepeta × faassenii 'Six Hills Giant') is one of the oldest and largest catmint cultivars, forming a broad mound 2–3 feet tall and wide with lavender-blue flower spikes from late spring to fall. Its aromatic gray-green foliage is a hallmark of the hybrid.

Botanical Profile

A sterile hybrid of N. racemosa and N. nepetella, it doesn't self-seed. The nepetalactone content attracts cats but less intensely than catnip. It's a reliable, long-lived perennial.

Garden Uses

• Middle of border: Size and long bloom make it a workhorse.
• Pollinator magnet: Bees, butterflies, hoverflies.
• Cat garden: Cats love to roll in it.
• Drought tolerant: Once established, needs little water.

Grow in full sun, well-drained soil. Shear after first flush for rebloom. Divide every 3–4 years. Hardy in USDA zones 3–8.