perennial

Carolina Lupine

Baptisia simplicifolia

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

48 inches

Width

30 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

All parts are toxic if ingested

The Story

Plant Bio

Thermopsis villosa, also known as Carolina Lupine, is a robust, clump-forming perennial with trifoliate, clover-like leaves and tall spikes of bright yellow, pea-like flowers in late spring to early summer. This species is valued for its low-growing habit and its ability to attract pollinators, making it an excellent choice for borders and wildflower gardens.

Bloom Period:

EarlyLate

Uses & Benefits:

Bright yellow flowers add cheerful color to sunny borders.

Drought-tolerant with minimal watering needs.

Supports pollinators like bees and butterflies.

Marketplace

Where to Buy

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Planting

How to Grow

Tuck seeds into moist soil in early spring.
Mist cuttings with water and place in bright indirect light.
Plant seedlings in well-drained soil after last frost.
Water regularly until established, about 6 weeks.
Fertilize with a balanced fertilizer in spring.
Mulch around base to retain moisture and suppress weeds.

Pro Tip

Ensure well-drained soil and full sun for best flowering.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Prune dead or damaged stems in late winter
Apply compost in early spring

Don't

Overwater to prevent root rot ❌
Avoid heavy fertilization that encourages lush foliage over flowers
Don’t disturb roots during early growth

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Plant
Stake
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged borderWildflower meadow accent

Companion Plants

Echinacea purpurea Rudbeckia hirta Lavandula angustifolia

Multiply

Propagation Methods

Good to Know

Common Questions

Carolina Lupine questions

What zones can Carolina Lupine grow in?

Carolina Lupine 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 Carolina Lupine deer resistant?

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

When does Carolina Lupine bloom?

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

Does Carolina Lupine need full sun?

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

Is Carolina Lupine drought tolerant?

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