Species

Stachys macranthaLarge-flowered Betony

perennial

Big Betony 'Superba'

Stachys macrantha 'Superba'

The Story

Plant Bio

A hardy perennial with a dense spike of purple flowers, known for its long blooming period.

The 'Superba' cultivar is particularly noted for its vibrant flower color and robust growth compared to other Stachys species.

Uses & Benefits:

Stachys macrantha Superba adds a soft, silvery texture to gardens, attracting pollinators and providing visual interest.

Its aromatic foliage can be used in herbal remedies and as a natural insect repellent.

Supports local pollinators such as bees and butterflies, promoting biodiversity.

SpeciesStachys macranthaLarge-flowered Betony

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate once established

Humidity

Average garden humidity

Lifespan

Perennial

Native To

Caucasus, Turkey, Iran

Toxicity

Non-toxic to humans and pets

Bloom period

Early summer – Late summer

In flower about 3 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings lightly to maintain humidity during rooting process.
Water regularly but avoid overwatering to prevent root rot.
Fertilize monthly with a balanced, organic fertilizer during growing season.
Prune after flowering to encourage bushy growth and remove dead stems.
Divide clumps in early spring or fall to propagate new plants.

Pro Tip

Ensure excellent drainage to prevent fungal issues and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water moderately during dry spells 🌱
Prune lightly after flowering
Fertilize during active growth

Don't

Overwater to avoid root rot ❌
Allow soil to become waterlogged ❌
Neglect pruning after flowering ❌

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged borderAromatic herb gardenRock garden accent

Companion Plants

Lavender SalviaRosemary Thyme Sedum

Multiply

Propagation Methods

Good to Know

Common Questions

Big Betony 'Superba' questions

What zones can Big Betony 'Superba' grow in?

Big Betony 'Superba' 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 Big Betony 'Superba' deer resistant?

Yes — Big Betony 'Superba' is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Big Betony 'Superba' bloom?

Big Betony 'Superba' typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Big Betony 'Superba' need full sun?

Big Betony 'Superba' does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Big Betony 'Superba' drought tolerant?

Yes — once established (usually after the first full season), Big Betony 'Superba' handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.