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Giant Red Paintbrush

Castilleja miniata

Also known as Giant Red Indian Paintbrush, Scarlet Paintbrush, Common Red Paintbrush

herbaceous☀️ full sun💧💧 moderate water❄ Hardy: Zone 3a – Zone 8b

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A showy wildflower with dense spikes of bright red tubular flowers and red-tinged bracts that bloom throughout summer. Native to western mountain meadows and open forests, it attracts hummingbirds and is ideal for naturalized gardens.

Why grow it

Giant red paintbrush offers earlier and more reliably vivid color than many alpine wildflowers, with a longer blooming window that extends through summer. It establishes more readily from seed than some related Castilleja species and tolerates a wider range of soil conditions, making it more practical for garden naturalization. The dense spike form provides a distinct vertical accent compared to the looser flower clusters of similar hummingbird-attracting natives.

Watch out for

This species often struggles in heavy clay or consistently wet soils despite its mountain origin, requiring amended or well-draining conditions to thrive long-term. Established plants may decline after several years in lowland gardens even with proper siting, as they are adapted to cooler, higher-elevation conditions. Success depends on matching microclimate to the plant's native habitat rather than on standard perennial care alone.

Overview

Form
Upright
Growth Rate
moderate
Size
1.5–3′ tall × 1–1.5′ wide
Dormancy
deciduous
Family
Orobanchaceae
Pollinators & beneficial insects

Native to the United States

Native Range

Western North America

Native to: Alaska, Arizona, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington, Wyoming

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

Summer

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Companion Planting

Plants well with