How to Grow Russet Norkotah Potato

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Russet Norkotah Potato

Solanum tuberosum 'Russet Norkotah'

vegetable

Russet Norkotah is a high-yield, mid-season potato variety prized for its large, brown-skinned tubers and white flesh. It is one of the most widely grown potato varieties in North America, particularly valued for baking, mashing, and processing into french fries. The plant produces abundant foliage and sets tubers reliably in diverse growing conditions.

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Example Russet Norkotah Potato timeline · Pittsburgh, PA (Zone 6b)

Plant Russet Norkotah Potato
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Russet Norkotah Potato
Around Jul 16

≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Russet Norkotah Potato dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; more sun promotes better tuber development

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Water: Consistent moisture; provide 1-2 inches per week through rainfall or irrigation. Keep soil evenly moist from planting through tuber bulking. Reduce watering 2-3 weeks before harvest to cure skins.

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Spacing: 10-12 inches apart in rows, with rows 30-36 inches apart inches

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Days to maturity: 90-120 days (mid-season variety)

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Planting depth: Plant seed potatoes 4 inches deep; hill soil over emerging plants as they grow to keep tubers covered

Soil

Type: Well-draining loamy or sandy loam soil with good structure

pH: 5.5-7.0

Amendments:

Aged compost or well-rotted manure Balanced fertilizer (10-10-10 or similar) Sulfur if pH is too high Perlite or coarse sand to improve drainage

Growing Zones

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Thrives in zones 3-8; cooler climates (zones 3-6) produce best yields and storage quality

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

Seed Potato Chitting

2-3 weeks before planting

Seed potatoes develop eyes with small sprouts 1-2 inches long before planting

Store at 50-60°F in light for 2-3 weeks before planting to encourage sprouting. Cut larger potatoes into 2-3 ounce pieces with 2-3 eyes each; let cuts cure 1-2 days.

Emergence & Early Growth

3-4 weeks after planting

Sprouts break soil surface; first leaves appear and expand. Plants develop bushy foliage.

Hill soil around emerging plants (cover by half) when plants are 6-8 inches tall to prevent greening of tubers and encourage more tuber development. Apply balanced fertilizer. Monitor for Colorado potato beetles.

Vegetative Growth & Flowering

4-6 weeks

Dense foliage with thick stems; white to light purple flowers appear. Plant reaches 20-30 inches tall.

Continue hilling soil as plant grows to maximize tuber zone. Maintain consistent watering (1-2 inches weekly). Fertilize mid-season with lower nitrogen (e.g., 5-10-10) to favor tuber development over foliage. Control pests and diseases.

Tuber Bulking & Maturation

4-6 weeks

Foliage remains green and vigorous; tubers swell underground. Plant canopy gradually thickens.

Maintain consistent soil moisture during this critical phase. Stop excess nitrogen fertilization. Scout for late blight and other diseases. Plants are most susceptible to disease stress now.

Senescence & Harvest Readiness

2-3 weeks

Foliage yellows, wilts, and dies back. Skin of tubers hardens; potato vines become brittle.

Stop watering 2-3 weeks before planned harvest to allow skins to thicken and cure. Remove vines or allow to die naturally. Harvest when soil moisture decreases and vines are fully dead for longest storage.

Companion Planting

Plan your garden →

Plant with:

Beans Corn Marigold Nasturtium Parsnip Peas Carrot

Avoid planting near:

Tomato Eggplant Pepper Fennel Onion Brassicas (cabbage, broccoli)

Common Pests

Hand-pick adults and orange egg clusters from undersides of leaves; use row covers on young plants; apply neem oil or spinosad; rotate crops annually to break lifecycle
Monitor with sticky traps; apply insecticidal soap or neem oil; maintain reflective mulches; use row covers early season
Spray with strong water stream; apply neem oil or insecticidal soap; encourage natural predators (ladybugs); remove infested leaves
Plant disease-resistant varieties or use certified disease-free seed; ensure good air circulation; avoid overhead watering; remove infected foliage; apply copper or mancozeb fungicides preventatively in humid conditions
Remove lower leaves as plants grow; avoid overhead watering; stake or hill to improve air circulation; apply copper fungicide; practice crop rotation
Rotate crops; use sticky traps; remove debris and weeds; allow chickens to forage before planting; apply entomopathogenic nematodes to soil before planting

Uses

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Baking & Mashing

Culinary

Russet Norkotah's high starch and white flesh make it ideal for fluffy baked potatoes, creamy mashed potatoes, and potato soups. The texture breaks down easily when cooked, creating smooth, light results. [source]

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French Fries & Processing

Culinary

This variety is the industry standard for commercial french fries and frozen potato products. Its size, consistent shape, and low moisture content produce crispy, golden fries. [source]

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Boiling & Roasting

Culinary

While high-starch varieties are less ideal for boiling (tend to fall apart), they work well for roasting due to their size and ability to develop crispy exteriors while staying creamy inside. [source]

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Long-Term Storage

Household

Russet Norkotahs have excellent storage longevity when cured and kept in cool, dark, humid conditions, maintaining quality for 4-6 months. This makes them ideal for home preservation and extended pantry storage. [source]

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Resistant Starch & Nutrition

Medicinal

When cooled after cooking, potatoes develop resistant starch, a prebiotic fiber that supports gut health. Potatoes are also good sources of potassium, vitamin C, and B vitamins, with skin-on preparation maximizing nutrient retention. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest when vines are fully dead and brown (90-120 days after planting), typically late September in northern zones. Dig carefully with a garden fork, working from the side of the row to avoid bruising tubers. Handle gently to prevent cuts and skin damage, which reduce storage life. Cure harvested potatoes in cool (50-60°F), dark, humid conditions for 10-14 days to toughen skin before long-term storage. Store in cool (40-45°F), dark, well-ventilated location. Russet Norkotahs store well for 4-6 months.

Fun Facts

🌱 Russet Norkotah was developed in 1968 at North Dakota State University (hence 'Norkotah' derived from 'North Dakota') by crossing Saranac with a Netted Gem clone. It quickly became the dominant commercial potato variety in North America.
🌱 The brown, netted skin of Russet Norkotahs develops through the formation of lenticels and periderm thickening, providing excellent protection during storage and handling compared to smooth-skinned varieties.
🌱 A single Russet Norkotah plant can produce 8-12 or more tubers of various sizes, making it highly productive; commercial yields can exceed 30 tons per acre under optimal conditions.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Full Sun pH

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