Lupinus polyphyllus 'Westcountry Blacksmith'

Species

Lupinus polyphyllusBigleaf Lupine

25 other cultivars

perennialN. America Native

Westcountry Blacksmith Lupine

Lupinus polyphyllus 'Westcountry Blacksmith'

The Story

Plant Bio

Lupinus 'Westcountry Blacksmith' is a robust, clump-forming perennial that produces tall, dense spires of deep purple, pea-like flowers, often with a white fleck, in late spring and early summer.

This cultivar is notable for its unique dark flower color, which sets it apart from other lupine varieties.

Uses & Benefits:

Lupinus polyphyllus Westcountry Blacksmith provides striking dark-colored flowers that add contrast and visual interest to garden beds and borders.

Fixes nitrogen in the soil, enriching garden fertility and supporting neighboring plants.

Attracts pollinators such as bees and butterflies, supporting local biodiversity.

SpeciesLupinus polyphyllusBigleaf Lupine

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

All parts of the plant are toxic if ingested, especially the seeds.

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 regularly to maintain humidity and promote root growth.
Transplant seedlings when they are sturdy and have developed several leaves.
Fertilize with a balanced, slow-release fertilizer during active growth periods.
Mulch around plants to conserve moisture and suppress weeds.
Prune dead or damaged stems after flowering to encourage bushier growth.

Pro Tip

Scarify seeds lightly before planting to improve germination rates and ensure even watering for healthy growth.

Keep It Thriving

Care Guide

Do

Water deeply but infrequently to encourage strong root development 🌱
Provide full sun for optimal flowering and growth
Deadhead spent flowers to promote continuous blooming
Apply a balanced fertilizer monthly during the growing season

Don't

Avoid overwatering, which can lead to root rot ❌
Don’t plant in heavy, poorly-draining clay soil without amendments
Refrain from pruning in late fall to prevent winter damage
Never neglect pest inspections during peak growing season

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Pest Check
Plant
Spring Cleanup
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Violet‑flowered border for cottage gardensColorful perennial bed accentWildflower meadow element

Companion Plants

Coreopsis Echinacea Salvia Gaillardia Achillea

Multiply

Propagation Methods

Good to Know

Common Questions

Westcountry Blacksmith Lupine questions

What zones can Westcountry Blacksmith Lupine grow in?

Westcountry Blacksmith Lupine is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Westcountry Blacksmith Lupine deer resistant?

Not reliably. Deer may browse Westcountry Blacksmith Lupine, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Westcountry Blacksmith Lupine bloom?

Westcountry Blacksmith Lupine 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 Westcountry Blacksmith Lupine need full sun?

Westcountry Blacksmith Lupine does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.