How to Grow Amarilla

Wikimedia Commons

Amarilla

Solanum tuberosum var. Amarilla

vegetable

Amarilla is a yellow-fleshed potato variety with smooth, thin skin and creamy texture when cooked. Originally from the Andes region, it's prized for its versatility in cooking and naturally buttery flavor. This heirloom potato is increasingly popular among home gardeners and chefs seeking flavorful alternatives to common white potato varieties.

When should you plant Amarilla in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Amarilla timeline →

Example Amarilla timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Amarilla

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Amarilla

    Around Jun 26

    ≈ 70 days after planting

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily
💧
Water: Consistent moisture throughout growing season; 1-1.5 inches weekly via rainfall or irrigation. Reduce watering as plants mature. Avoid waterlogging.
📏
Spacing: 12-15 inches between seed pieces in rows 24-36 inches apart inches
📅
Days to maturity: 70-90 days for new potatoes; 90-120 days for mature storage potatoes
🌱
Planting depth: 3-4 inches deep; cover seed pieces with 2 inches of soil initially, then hill as plants grow

Soil

Type: Well-draining, loose, slightly acidic loamy soil rich in organic matter
pH: 5.5-7.0
Amendments:
aged compost peat moss sulfur (if pH too high) potassium-rich fertilizer

Growing Zones

Find your zone →

Thrives in zones 3-8; prefers cooler climates with moderate rainfall

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

Sign up free to see if Amarilla grows in your zone — and get a personalized planting timeline.

Get my Amarilla timeline →

Growth Stages

1

Seed Piece & Sprouting

2-3 weeks

Seed potatoes are planted and develop sprouts over 2-3 weeks. Soil temperature should be 45-50°F minimum.

Use certified seed potatoes with 2-3 eyes each. Plant as soon as soil is workable in spring. Keep soil consistently moist but not waterlogged.

2

Vegetative Growth

3-4 weeks

Leafy green tops emerge and grow vigorously. Underground stolons begin forming tubers at nodes.

Begin hilling soil over plants when 6-8 inches tall; repeat hilling every 2-3 weeks. Remove any flowering potato beetle adults by hand. Water regularly.

3

Tuber Development

4-6 weeks

Potatoes form and enlarge beneath hilled soil. Plant canopy becomes dense and bushy.

Maintain consistent moisture; this is critical for tuber sizing. Continue hilling to prevent greening of tubers. Mulch to retain soil moisture and keep tubers covered.

4

Flowering & Maturation

3-4 weeks

Small flowers appear (usually white or pale pink). Foliage may show slight decline. Tubers reach desired size.

For new potatoes, harvest at this stage (70-90 days). For storage potatoes, wait until foliage dies back completely. Reduce watering gradually.

5

Harvest & Curing

1-2 weeks

Foliage yellows and dies back naturally. Tubers develop thicker skins and are ready for harvest.

Wait 1-2 weeks after foliage dies before harvesting to allow skins to cure. Harvest on a dry day. Cure harvested potatoes in cool, dark, humid location for 2 weeks.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

brassicas (cabbage, broccoli) carrots fennel onions tomatoes peppers

Common Pests

  • Hand-pick adults and egg clusters; use row covers on young plants; apply neem oil or spinosad; encourage natural predators like ladybugs

  • Spray with strong water stream; use insecticidal soap; encourage beneficial insects; reflective mulch may deter

  • Ensure good air circulation; avoid overhead watering; remove infected foliage; apply copper fungicide; plant resistant varieties

  • Crop rotation; remove debris; trap with pieces of potato buried in soil; beneficial nematodes; avoid planting in recently tilled sod

  • Maintain soil pH below 6.5; ensure adequate moisture; avoid over-liming; practice crop rotation; choose resistant varieties

Uses

🍳

Boiling, Roasting & Mashing

Culinary

Amarilla's buttery, creamy texture and naturally sweet flavor make it ideal for boiling whole, roasting, or mashing. The yellow flesh maintains its color and smooth consistency even when cooked extensively. [source]

🍳

Authentic Peruvian & Latin American Cuisine

Culinary

As an heirloom Andean variety, Amarilla is traditionally used in classic dishes like causa limeña, ceviche accompaniments, and papa a la huancaína. Its natural flavor elevates traditional recipes without added butter or cream. [source]

🏠

Natural Starch for Cleaning & Laundry

Household

Like other potatoes, Amarilla can be processed to produce starch for natural fabric stiffening and as an eco-friendly cleaning agent for textiles. [source]

💊

Nutritional & Health Benefits

Medicinal

Rich in vitamin C, potassium, and B vitamins, Amarilla provides sustained energy and supports cardiovascular health. The naturally occurring compounds support antioxidant activity. [source]

🎨

Natural Dye Production

Craft

Potato foliage and tuber pigments can be used to create natural dyes for textiles and artistic projects, with shades ranging from yellow to soft greens. [source]

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

Harvest Tips

For new potatoes, harvest 70-90 days after planting when plants are still flowering by carefully digging around plants. For full-size mature potatoes, wait until foliage dies back completely (90-120 days), then harvest on a dry day. Gently dig to avoid bruising tubers. Cure freshly harvested potatoes in a cool (50-60°F), humid, dark location for 2 weeks to toughen skins for storage. Store in cool, dark conditions (45-50°F) with high humidity for up to 3-4 months.

Fun Facts

  • 🌱 Amarilla potatoes are native to the high-altitude Andes mountains of Peru and Bolivia, where potatoes were first domesticated over 7,000 years ago.
  • 🌱 The natural yellow pigment in Amarilla comes from carotenoid compounds, the same antioxidants found in carrots and squash, making them more nutritious than white potato varieties.
  • 🌱 A single potato plant can produce 5-10 tubers from one seed piece, making potatoes one of the most productive and calorie-efficient crops for home gardeners.

Gardening Terms

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

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Amarilla planting timeline

Tell us your zip code and we'll calculate exactly when to start Amarilla seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Amarilla timeline →