1 named cultivar

‘Wisconsin form’Leadplant

shrubN. America Native

Leadplant

The Story

Plant Bio

Amorpha canescens, leadplant, is a low woody subshrub native to the North American prairies, reaching one to three feet. Finely divided pinnate leaves with up to forty-five small leaflets are covered in grey hairs, giving the whole plant a soft leaden cast. Dense spikes of tiny purple flowers with bright orange anthers open in summer.

Its roots reach fifteen feet or more into the prairie soil, which makes it almost indestructible once established and correspondingly difficult to transplant. As a legume it fixes nitrogen, and the flower spikes — purple studded with orange — are among the most distinctive in the native flora.

Uses & Benefits:

Silvery ferny foliage with purple-and-orange flower spikes in midsummer.

Fixes nitrogen, holds dry slopes, and survives drought that kills almost anything else.

A valuable plant for native and specialist bees, and a nectar source for butterflies and moths.

Essentials

At a Glance

Plant Type

Shrub

Height

24 inches

Width

27 inches

Light

Full Sun

Zones

4, 5, 6, 7, 8, 9

Water

Low

Humidity

Low

Lifespan

Perennial

Native To

Central North America

Toxicity

Non-toxic

Planting

How to Grow

Plant in spring in well-drained, lean soil.
Choose full sun to light shade.
Site it permanently; the taproot resents moving.
Water only to establish.
Do not feed; it fixes its own nitrogen.
Cut back in late winter to keep it dense.

Pro Tip

Plant it small and leave it — a young plant establishes far better than a large one, whose deep taproot will already be coiled in the pot.

Keep It Thriving

Care Guide

Do

Plant in full sun and lean soil ☀️
Site it once and leave it 🌱
Cut back in late winter ✂️
Use it on dry slopes and prairie planting 🌾

Don't

Feed it; it fixes its own nitrogen ❌
Move an established plant ❌
Plant in wet, heavy soil ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Monitor
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Prairie and meadow plantingDry slope and bankPollinator border in poor soil

Companion Plants

Little Bluestem Purple Coneflower Butterfly Weed Prairie Dropseed Blue Sage

Multiply

Propagation Methods

Good to Know

Common Questions

Leadplant questions

What zones can Leadplant grow in?

Leadplant is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Leadplant deer resistant?

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

When does Leadplant bloom?

Leadplant typically blooms in midsummer through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Leadplant need full sun?

Leadplant does best in full sun (6+ hours).

Is Leadplant drought tolerant?

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