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Chinese Artichoke

Stachys affinis

Also listed as Stachys sieboldii, Stachys tubifera

Also known as Japanese-artichoke, Artichoke Betony, Knotroot

herbaceousβ›… part shadeπŸ’§πŸ’§ moderate water❄ Hardy: Zone 4a – Zone 9b

Climate Match for your location

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Chinese artichoke is a productive tuber-bearing perennial valued for its knobby, nutty-flavored edible rhizomes harvested in fall and winter. It forms attractive spikes of small pink to purple flowers and spreads via underground tubers, making it useful for permaculture systems.

Why grow it

Chinese artichoke offers a winter harvest window when few other root crops are productive, filling a seasonal gap in temperate gardens. The tubers are smaller and more delicate than Jerusalem artichokes, requiring less space and storage, while delivering comparable nutritional value. Its ornamental flower spikes add visual interest compared to other utility tubers, making it a practical dual-purpose planting in permaculture designs.

Watch out for

The knobby tuber shape makes cleaning labor-intensive compared to smoother root crops. In rich, consistently moist soil it can spread vigorously beyond intended areas over multiple seasons, requiring deliberate management if containment is desired. Yields tend to be modest per unit area, so site it based on realistic expectations rather than as a primary staple crop.

Overview

Form
Mounding
Growth Rate
moderate
Size
1.5–2.5β€² tall Γ— 1–1.5β€² wide
Dormancy
deciduous
Family
Lamiaceae
edibledynamic accumulator

Native Range

East Asia

Seasonality

Bloom Season

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

Harvest Season

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

Edible Parts

root

Season of Interest

SummerFall

Similar root crops you might consider:

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Companion Planting

Plants well with