How to Grow Highland Red

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Highland Red

Solanum tuberosum 'Highland Red'

vegetable

Highland Red is a mid-season red potato variety known for its deep red skin and creamy yellow flesh with excellent flavor and texture. It produces high yields of medium-sized tubers and is particularly valued for its disease resistance and ability to store well. This versatile potato is excellent for boiling, mashing, and salads.

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Example Highland Red timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Highland Red

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Highland Red

    Around Jul 16

    ≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Highland Red dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum
💧
Water: Consistent moisture, 1-1.5 inches per week. Water deeply and regularly, especially during tuber development. Avoid waterlogging which can cause rot and disease.
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Spacing: 12 inches
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Days to maturity: 90-110 days
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Planting depth: 4 inches

Soil

Type: Well-draining loamy soil with good organic matter content
pH: 5.5-7.0
Amendments:
Compost or aged manure Peat moss Potassium sulfate (if low in potassium) Avoid fresh manure to prevent scab disease

Growing Zones

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Thrives in zones 3-7, with cooler climates producing the best yields

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

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Growth Stages

1

Seed Piece Sprouting

1-2 weeks

Cut seed pieces (2 oz each with 2-3 eyes) are planted and begin sprouting underground within 1-2 weeks

Ensure soil is at least 45°F before planting. Keep soil evenly moist but not waterlogged. Apply seed-piece fungicide if available to prevent rot.

2

Emergence & Vegetative Growth

3-4 weeks

Sprouts break through soil surface and develop into bushy plants with compound leaves. Stolons form underground where tubers will develop.

Hill soil around emerging shoots when they are 6 inches tall to prevent greening of tubers. Keep weeds controlled. Monitor for late blight and early blight.

3

Tuber Development

4-6 weeks

Small tubers form on underground stolons. Plant growth is vigorous with dense foliage. This is the most critical growth period.

Maintain consistent soil moisture (critical for size and quality). Apply second hilling if needed. Continue pest/disease monitoring. Provide adequate potassium through fertilizer or soil amendments.

4

Maturation & Skin Set

2-3 weeks

Tuber growth continues and skin hardens. Foliage may begin to yellow and die back as plant matures.

Reduce watering slightly as plants decline. Do not disturb plants to avoid damaging tubers. Stop nitrogen fertilization to avoid excess leafy growth.

5

Harvest Readiness

2-3 weeks after vine death

Vines die back completely or are killed by frost. Tubers have full color and firm skin resistant to bruising.

Wait 2-3 weeks after vines die back to allow skin to cure and harden. This improves storage life. Dig carefully to avoid cuts and bruises.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Tomatoes Peppers Eggplant Fennel Brassicas (in same location year after year) Onions Parsnips

Common Pests

  • Hand-pick beetles and egg clusters; use row covers on young plants; apply spinosad or neem oil; rotate crops yearly

  • Spray with insecticidal soap; encourage beneficial insects; use reflective mulches; apply neem oil as needed

  • Use row covers early; apply diatomaceous earth; spray neem oil; remove plant debris

  • Ensure good air circulation; water at soil level; apply copper fungicide or chlorothalonil; remove infected foliage; use resistant varieties

  • Remove lower leaves as plants grow; mulch to prevent soil splash; apply fungicide; practice crop rotation

  • Crop rotation; deep plowing; trapping; avoid planting in previously infested areas; maintain soil moisture

Uses

🍳

Boiling, Mashing & Salads

Culinary

Highland Red potatoes have creamy yellow flesh that holds its shape well when cooked, making them ideal for potato salads, boiled potatoes, and mashing. Their waxy texture and mild flavor are excellent for traditional potato dishes. [source]

🍳

Roasting & Side Dishes

Culinary

The firm texture and attractive red skin make Highland Reds excellent for roasting whole or halved, maintaining their integrity during cooking. The skin can be left on for rustic presentations. [source]

🏠

Long-Term Storage

Household

Highland Red potatoes are known for excellent storage capability, lasting up to 6 months in proper cool, dark conditions. This makes them ideal for winter food preservation and self-sufficiency gardening. [source]

💊

Nutritional Value

Medicinal

Red potatoes contain beneficial antioxidants including anthocyanins and vitamin C. They provide resistant starch when cooled after cooking, supporting digestive health. [source]

🦋

Crop Rotation & Soil Building

Wildlife

Potato cultivation helps break up soil structure and can be part of crop rotation systems that improve long-term garden health. The dense foliage and dense planting suppress weeds. [source]

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

Harvest Tips

Highland Red potatoes mature in 90-110 days. Harvest when vines die back completely or 2-3 weeks after frost kills the foliage. Dig carefully with a garden fork, working from the side to avoid cutting tubers. Harvest on a dry day and allow potatoes to cure in a cool, dark place for 10-14 days to harden skin before storage. Store at 45-50°F in darkness for best longevity (up to 6 months).

Fun Facts

  • 🌱 Highland Red potatoes get their red color from anthocyanin pigments concentrated in the skin, the same compounds found in blueberries and red wine
  • 🌱 Potatoes are the world's fourth-largest food crop after rice, wheat, and corn, and Highland Red is one of the most popular red varieties in North America due to its reliability and disease resistance
  • 🌱 Potatoes were domesticated in the Andean highlands of Peru 8,000-10,000 years ago, and there are over 4,000 native potato varieties; modern cultivars like Highland Red are selected for productivity and disease resistance

Gardening Terms

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