How to Grow Potatoes

Potatoes (Solanum tuberosum) are cool‑season root crops grown for their starchy, versatile tubers. They thrive in full sun, loose soil, and consistent moisture. This guide explains planting, germination, care, harvesting, and climate considerations suitable for all regions.

Where Should You Plant Potatoes?

  • Best location: Full sun; potatoes need strong light for vigorous foliage and tuber formation.
  • Soil: Loose, well‑drained, sandy or loamy soil; pH 5.5–7.0.
  • Moisture: Even moisture; avoid waterlogging to prevent rot.

When Should You Plant Potatoes?

  • Start indoors: Not typical; potatoes are grown from seed potatoes, not true seeds.
  • Transplanting: Rare; tubers are planted directly outdoors.
  • Direct sow: Plant once soil is workable and cool; potatoes prefer early‑season planting.

How Do You Plant Potatoes?

  • Depth: Plant seed potatoes 3–4 inches deep with eyes facing upward.
  • Spacing: Space plants 12 inches apart; allow 24–36 inches between rows.
  • Quantity: Several plants ensure a steady harvest and multiple tuber sizes.

Which Plants Grow Well With Potatoes?

  • Companions: Beans, corn, cabbage, and marigolds.
  • Avoid: Tomatoes, peppers, and eggplants due to shared diseases.
  • Best pairing: Plants that do not compete heavily for root space.

How Do You Water and Feed Potatoes?

  • Watering: Keep soil evenly moist; reduce watering once plants flower and tubers begin forming.
  • Feeding: Apply balanced fertilizer; avoid excess nitrogen, which promotes foliage over tubers.

How Do You Care for Potatoes?

  • Support: No support needed; plants grow upright naturally.
  • Weeding: Keep beds weed‑free to reduce competition and maintain soil warmth.
  • Hilling: Mound soil around stems as plants grow to encourage tuber formation and prevent greening.

Can You Grow Potatoes in Containers?

  • Container size: Minimum 10–15 gallons; deeper containers support more tubers.
  • Winter growing: Possible indoors with cool temperatures and bright light.

What Pests or Diseases Affect Potatoes?

  • Pests: Colorado potato beetles, aphids, and wireworms.
  • Diseases: Blight, scab, and rot; ensure good airflow and proper watering.

How Do You Harvest Potatoes?

  • Timing: Harvest new potatoes when plants flower; full‑size potatoes when foliage dies back.
  • Leaves: Not harvested; foliage supports tuber development.
  • Seeds: Potatoes are grown from seed potatoes; true seeds are rarely used.