Highlights

Striking Summer Blooms – Produces tall, lilac-blue flower spikes from early summer, adding colour and movement to borders.
Wildlife Friendly – Rich nectar attracts bees, butterflies, and other pollinators for increased garden biodiversity.
Aromatic Foliage – Scented leaves are irresistible to cats and add sensory appeal to your outdoor space.
Low Maintenance – Thrives in full sun or partial shade; drought tolerant once established and ideal for UK gardens.
Versatile Planting – Perfect for borders, path edges, cottage gardens, and as cut flowers for arrangements.

We're offering you a 1, 2 or 3 Nepeta Six Hills Giant Plants for £6.99, saving you up to 30% off Thompson and Morgan's's price of £9.99 (correct as of 11.12.2025).

Add Movement and Colour with Nepeta 'Six Hills Giant'

Transform your garden with the Nepeta 'Six Hills Giant', a robust perennial from the mint family (Lamiaceae). Known as Catmint, this variety is prized for its upright habit and abundant lavender-blue flower spikes that sway gently above aromatic, silvery-green foliage.

Botanical Name: Nepeta x faassenii 'Six Hills Giant'
Mature Size: Grows up to 90cm tall and spreads up to 60cm wide
Flowering Period: Blooms prolifically from June through September
Hardiness: Fully hardy in UK gardens (RHS H7)

Why Choose Nepeta 'Six Hills Giant'?

Biodiversity Booster: High nectar content draws bees, butterflies, and other beneficial insects.
Sensory Appeal: Aromatic foliage releases a pleasant scent when brushed, delighting both gardeners and cats.
Design Flexibility: Ideal for softening path edges, filling sunny borders, or pairing with roses and ornamental grasses.
Dual Purpose: Beautiful as a garden feature and excellent as cut flowers in bouquets.

Growing Guide & Care Tips

Planting Time: Best planted in spring or autumn when soil is moist but not waterlogged.
Location: Prefers full sun but tolerates partial shade; plant in well-drained soil (neutral to slightly alkaline pH).
Irrigation: Water regularly during establishment; drought tolerant once mature.
Maintenance: Cut back spent flower stems after the first flush to encourage repeat blooming. Prune hard in early spring to maintain shape and vigour.
Pest Resistance: Generally pest- and disease-free; deer and rabbit resistant.

Clever Companion Planting & Usage Ideas

Create cottage garden charm by pairing with roses, salvias, or geraniums.
Add texture along borders or path edges where its movement softens hard lines.
Cultivate near patios to enjoy fragrance and pollinator activity up close.

FAQs

When is the best time to plant Nepeta 'Six Hills Giant'?
The ideal time is spring or autumn when temperatures are mild and soil is workable.
How fast does this Catmint grow?
Nepeta 'Six Hills Giant' establishes quickly in its first year and reaches mature height within two seasons under good conditions.
What type of soil does it prefer?
This variety thrives in well-drained, neutral to slightly alkaline soils. Avoid heavy clay or waterlogged sites for best results.