Species

Nepeta x faasseniiFaassen's Catmint

5 other cultivars

perennial RHS Award

Six Hills Giant Catmint

Nepeta x faassenii 'Six Hills Giant'

The Story

Plant Bio

A large, bushy perennial with aromatic foliage and vibrant flower spikes.

Known for its tall stature and striking blue flowers that attract pollinators.

Uses & Benefits:

Nepeta faassenii Six Hills Giant offers aromatic foliage and long-lasting lavender flowers, perfect for borders and pollinator gardens.

Its drought tolerance makes it ideal for water-wise landscapes, reducing maintenance needs.

Attracts bees, butterflies, and hummingbirds, supporting local pollinator populations.

SpeciesNepeta x faasseniiFaassen's Catmint

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Low to moderate

Humidity

Average

Lifespan

Perennial

Native To

Garden hybrid

Toxicity

Non-toxic to humans and pets

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Mist cuttings regularly to maintain humidity.
Provide full sun for optimal growth and flowering.
Water sparingly once established, avoiding overwatering.
Fertilize lightly in spring with a balanced organic fertilizer.
Divide plants every 2-3 years in early spring or fall.

Pro Tip

Ensure excellent drainage to prevent root rot and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water when the top inch of soil feels dry 🌱
Prune after flowering to encourage bushiness
Use organic compost annually to enrich soil
Provide full sun for vibrant blooms

Don't

Overwater, leading to root rot ❌
Neglect pruning, which can cause legginess
Plant in heavy clay soil without amendments ❌
Expose to excessive humidity in dry climates ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged borderFragrant herb gardenDry rock garden accent

Companion Plants

SalviaLavender Sedum Echinacea Coreopsis

Multiply

Propagation Methods

Good to Know

Common Questions

Six Hills Giant Catmint questions

What zones can Six Hills Giant Catmint grow in?

Six Hills Giant Catmint is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Six Hills Giant Catmint deer resistant?

Yes — Six Hills Giant Catmint is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Six Hills Giant Catmint bloom?

Six Hills Giant Catmint typically blooms in late spring to late summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Six Hills Giant Catmint need full sun?

Six Hills Giant Catmint does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Six Hills Giant Catmint drought tolerant?

Yes — once established (usually after the first full season), Six Hills Giant Catmint handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.