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Red Buckwheat

Eriogonum grande var. rubescens

Also listed as Eriogonum grande subsp. rubescens, Eriogonum grande var. dunklei

Also known as Large Red Buckwheat, Red-flowered Buckwheat, Redflower Buckwheat

shrub☀️ full sun💧 low water❄ Hardy: Zone 9a – Zone 10b

Climate Match for your location

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A California native shrub with small gray-green leaves and showy red to pink flower clusters that attract pollinators. Extremely drought-tolerant once established and requires minimal maintenance.

Why grow it

Red buckwheat offers reliable summer and fall color in arid and semi-arid regions where many ornamental shrubs struggle. Compared to other California native buckwheats, this variety produces particularly showy flower displays while maintaining the genus's exceptional drought tolerance and minimal fertilizer requirements. It performs well in lean, well-draining soils where cultivated ornamentals often decline.

Watch out for

Overwatering and heavy clay soils can lead to root issues, particularly in humid climates or during establishment if irrigation schedules are not carefully moderated. This plant benefits from occasional pruning after flowering to maintain compact form, though it responds slowly to severe cutting back compared to some cultivated shrubs.

Overview

Form
mounding
Growth Rate
moderate
Size
1.5–3′ tall × 2–4′ wide
Dormancy
evergreen
Family
Polygonaceae
pollinator nectaryerosion control

Native to the United States

Native Range

Southern California

Native to: California

Seasonality

Bloom Season

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

Season of Interest

SpringSummerFall

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Companion Planting

Plants well with