Plant Database / Survival Calories / Dent / Field Corn
Survival Calories

Dent / Field Corn

Zea mays
Poaceae (Grass)

The original American survival crop. Dent corn dries on the stalk, stores for a year, and grinds into cornmeal — true storable calories.

EdibleAnnualFull sunSurvival cropStores wellStaple calories
Dent / Field Corn (Zea mays) illustration — Texas Roots plant database, by Jordan Polasek
Sun
Full sun
Water
Steady, especially at tasseling
Soil
Rich, nitrogen-hungry
pH
6.0–6.8
Hardiness
Warm-season annual
Height
6–10 ft
Spacing
Plant in blocks, 10–12 in
Days to harvest
90–120 (dry)

Sweet corn vs survival corn

The corn you eat off the cob fresh is sweet corn — wonderful, but it doesn't store. Dent (field) corn and flint corn are the storage crops: you let them dry hard on the stalk, shell the kernels, and keep them for a year or grind them into cornmeal and grits. For food security, this is the corn that matters.

Plant in a block, not a row

Corn is wind-pollinated, so a single long row pollinates poorly and you get gap-toothed ears. Always plant corn in a square block of at least 4 rows so pollen falls across the whole patch. This one fact fixes most first-time corn failures.

The Three Sisters

Corn, beans, and squash are the classic companion trio: corn gives the beans a pole, beans fix nitrogen for the heavy-feeding corn, and squash shades the ground and blocks weeds. It's one of the most efficient survival-garden layouts ever devised.

🔎 How to identify it

  • Tall single grass stalk with broad strap leaves
  • Tassel (male flower) at the very top; ears (female) lower on the stalk with silk
  • Dent corn kernels show a dimple ('dent') on top when dry

⚠ Lookalikes & safety

Sorghum, other tall grasses

Similar tall-grass look; corn's ears-with-silk and top tassel are unmistakable. None dangerous.

Edibility

PartsKernels (dried, ground); fresh if harvested young
UsesCornmeal, grits, hominy, animal feed
CautionStore fully dry to prevent mold. Nixtamalization (lime treatment) improves nutrition.
🌤 Before you plant: check the live 7-day garden weather to time it right for frost and heat.

Part of the free Texas Roots plant database, compiled by Jordan Polasek from his greenhouse in El Campo, Texas. Free to read and share. If it helped, the best thanks is to grow something.