How to Plant Potatoes in Your Garden: Complete Growing Guide

Potatoes (Solanum tuberosum) are a global dietary staple, loved across cultures and cuisines. These modified stems (tubers) grow underground in over 100 varieties, with white and red-skinned types most common in home gardens. Growing your own yields superior flavor and texture compared to store-bought.

Getting Started: Seed Potatoes

Always use certified disease-free seed tubers from garden centers or reputable suppliers—never supermarket potatoes, which may carry diseases or sprout inhibitors. Upon receipt, spread tubers on a tray in a ventilated area for a few hours. Select firm, blemish-free pieces for planting.

Timing Your Planting

Potatoes prefer cool weather. Plant 2–3 weeks before your last expected frost date (28°F or lower). They take 2–3 weeks to emerge. If you've refrigerated seed potatoes, bring them to a bright, warm spot (60–70°F) for a week before planting to encourage sprouting.

Soil and Planting Depth

Well-drained soil is essential—avoid planting in icy or waterlogged ground. Dig holes or trenches 6–8 inches deep. Plant whole or cut seed pieces (each with at least 2–3 "eyes") 12 inches apart within rows, with rows spaced 3 feet apart.

Preventing Scab and Improving Quality

• If scab (rough skin patches) was a problem previously, place dry pine needles beneath seed tubers.
• Rotate crops annually—never plant potatoes in the same spot consecutively.
• Choose a sunny location and amend soil with compost or balanced fertilizer.

Hilling: The Key to Quality Tubers

When plants reach 12 inches tall, mound soil 6–8 inches high along the row ("hilling"). This keeps developing tubers covered, preventing sunlight exposure that turns them green and bitter. Repeat as plants grow.

Watering and Pest Management

Water evenly and consistently—dry spells after rain can cause hollow heart in varieties like Yukon Gold. For Colorado potato beetles: check leaf undersides daily, crush yellow egg clusters, hand-pick larvae and adults. For severe infestations, apply Bacillus thuringiensis (Bt), a safe biological control.

Harvest and Storage

Begin harvesting "new potatoes" about 8 weeks after planting. For mature tubers, wait until foliage yellows and dies back in fall. Cure in a dry, shaded spot (garage or shed) for 2 days, then store in a cool, dark, dry place.

Space-Saving Alternatives

No garden? Grow potatoes in bags, tires, or large containers on patios or balconies—perfect for urban gardeners.