Corn

Zea mays, Poaceae

Zones

3–11

Layer

Herbaceous

Lifespan

Annual

Growth

Fast

Guild Roles

Producer

Growing Conditions

Sun

Full Sun (optimal)

Water

Moderate

Soil pH

5.8 – 7

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

LupineLupinus perennis

Nitrogen Fixation

Annual LupinLupinus angustifolius

Nitrogen Fixation

White LupinLupinus albus

Nitrogen Fixation

Blue False IndigoBaptisia australis

Nitrogen Fixation

White Wild IndigoBaptisia alba

Nitrogen Fixation

Siberian Pea ShrubCaragana arborescens

Nitrogen FixationWind Protection

NasturtiumTropaeolum majus

Trap CropPest Deterrent

Honey LocustGleditsia triacanthos

Nitrogen FixationShade Provision

TaroColocasia esculenta

Physical SupportNutrient Accumulation

SpearmintMentha spicata

Pest Deterrent

Apple-ring AcaciaFaidherbia albida

Nitrogen FixationShade Provision

Ice Cream BeanInga edulis

Nitrogen FixationShade Provision

German ChamomileMatricaria chamomilla

Beneficial Insect HabitatPest Deterrent

Antagonistic Plants

WatercressNasturtium officinale

Corn can produce compounds that inhibit watercress growth, while competing for nutrients in aquatic-adjacent systems

MahoganySwietenia mahagoni

Mahogany can produce compounds that inhibit crop growth and creates heavy shade unsuitable for corn

Rubber TreeHevea brasiliensis

Rubber Tree can produce allelopathic compounds and create shade conditions unsuitable for corn production

TamarindTamarindus indica

Tamarind produces allelopathic compounds and has extensive root systems that can inhibit corn growth

AllspicePimenta dioica

Allspice produces aromatic compounds that can have allelopathic effects on crop plants including corn

American BeechFagus grandifolia

American beech creates too much shade and may produce allelopathic compounds inhibiting corn growth

Uses

Functions

Food

Edible Parts

Seeds

Common Questions

What zones does Corn grow in?

Corn grows in USDA hardiness zones 3 through 11.

What are good companion plants for Corn?

Good companions for Corn include Lupine, Annual Lupin, White Lupin, Blue False Indigo, White Wild Indigo.

Design guilds with Corn and see companion relationships visually.

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