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Mashua

Tropaeolum tuberosum

Also known as Anu

herbaceous⛅ part shade💧💧 moderate water❄ Hardy: Zone 8a – Zone 11b

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Mashua is a frost-sensitive perennial vine from the Andes grown primarily for its edible, starchy tubers that form underground. The plant produces bright orange flowers and can be used as a productive vegetable crop in temperate regions where it is replanted annually.

Why grow it

Mashua offers yields comparable to potato in similar growing conditions, but with notably higher protein and mineral content in the tubers. Unlike potato, mashua produces edible leaves and flowers that can extend harvest value, and the vines provide living mulch and ground cover benefits typical of perennial crop systems. For growers in cool climates seeking crop diversity beyond standard root vegetables, mashua fills a productive niche where other Andean tuber crops may struggle.

Watch out for

Mashua tubers develop bitter compounds (saponins) when exposed to light during storage or growth, so consistent earthing-up and dark storage conditions are necessary for palatability. The vines are vigorous and can become tangled, requiring regular trellising attention during the growing season. Yields vary considerably with day length and photoperiod, so gardeners in higher latitudes may find production less reliable than closer to the equator.

Overview

Form
Vine
Growth Rate
fast
Size
3–8′ tall
Dormancy
deciduous
Family
Tropaeolaceae
EdibleDynamic accumulatorErosion control

Native Range

Andes Mountains (Peru, Bolivia)

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

rootleaf

Season of Interest

SummerFall

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Companion Planting

Plants well with