Potato

Solanum tuberosum, Solanaceae

Zones

3a–10b

Layer

Root

Lifespan

Annual

Growth

Fast

Guild Roles

Producer

Growing Conditions

Sun

Full Sun (optimal)

Water

Moderate

Soil pH

5 – 6.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

English PeaPisum sativum

Nitrogen Fixation

QuinoaChenopodium quinoa

Pest DeterrentNutrient Accumulation

EdamameGlycine max

Nitrogen FixationPest Deterrent

HorseradishArmoracia rusticana

Pest Deterrent

French MarigoldTagetes patula

Pest Deterrent

TansyTanacetum vulgare

Pest Deterrent

Hairy VetchVicia villosa

Nitrogen Fixation

Black BeanPhaseolus vulgaris Black

Nitrogen Fixation

Tah TsaiBrassica rapa var. narinosa

Pest Deterrent

Aji PepperCapsicum baccatum

Pest DeterrentTrap Crop

Antagonistic Plants

TomatoSolanum lycopersicum

Potatoes and tomatoes share late blight and compete as relatives

Bronze FennelFoeniculum vulgare

Fennel allelopathy inhibits potato growth

SunflowerHelianthus annuus

Sunflower residue allelopathy inhibits potato growth

Black WalnutJuglans nigra

Black walnut juglone kills potatoes

Tabasco PepperCapsicum frutescens

Nightshade family members that compete and may share common diseases

Bok ChoyBrassica rapa var. chinensis

Brassica allelopathic compounds can reduce potato sprouting and root development

Sweet PotatoIpomoea batatas

Both root crops compete for underground space and share some soil-borne pests

Choy SumBrassica rapa var. parachinensis

Choy sum allelopathic compounds interfere with potato tuber development

Cape GooseberryPhysalis peruviana

Cape gooseberry and potato share solanaceous family pests and diseases

Sweet FennelFoeniculum vulgare

Fennel allelopathy inhibits potato growth

Bell PepperCapsicum annuum var. annuum

Potato and peppers are both nightshades that compete and share common diseases

Carolina ReaperCapsicum chinense Carolina Reaper

Nightshade family members that compete for resources and share disease susceptibility

Uses

Functions

Food

Edible Parts

Roots

Common Questions

What zones does Potato grow in?

Potato grows in USDA hardiness zones 3a through 10b.

What are good companion plants for Potato?

Good companions for Potato include English Pea, Quinoa, Edamame, Horseradish, French Marigold.

Design guilds with Potato and see companion relationships visually.

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