How to Grow Arctic Blue Potato
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Arctic Blue Potato
Solanum tuberosum 'Arctic Blue'
vegetableArctic Blue is a mid-season fingerling potato variety prized for its striking deep blue/purple skin and flesh, along with excellent nutritional properties and disease resistance. The tubers are small to medium-sized, elongated, and uniform in shape, making them ideal for roasting, boiling, and salads. This hardy variety thrives in cooler climates and offers superior flavor compared to conventional white potatoes.
When should you plant Arctic Blue Potato in your zone?
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Example Arctic Blue Potato timeline · Pittsburgh, PA (Zone 6b)
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Plant Arctic Blue Potato
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Arctic Blue Potato
Around Jul 1≈ 75 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Arctic Blue Potato dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 3-6; excels in cool climates but can grow in zone 7 with careful management
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Get my Arctic Blue Potato timeline →Growth Stages
Planting & Sprouting
2-3 weeksSeed pieces are planted in cool spring soil; sprouts emerge in 2-3 weeks, breaking through the soil surface
Ensure soil temperature is at least 40°F (preferably 45-50°F). Plant in early spring for best results. Keep soil consistently moist during this stage.
Vegetative Growth
3-4 weeksStems elongate, true leaves develop in alternate compound patterns, and plant height increases to 12-18 inches. Roots establish and stolons form underground
Hill (mound) soil around stems every 2-3 weeks as plants grow to promote tuber formation and protect developing potatoes from light exposure. Maintain consistent moisture and monitor for early blight.
Flowering
3-4 weeksSmall blue-purple flowers appear on flower clusters; plant reaches near-full height of 18-24 inches. Underground, tubers begin to swell and enlarge
Continue hilling if not already complete. Maintain steady water supply during this critical bulking period. Increase fertilizer application with balanced or slightly higher potassium formula. Begin scouting for late blight.
Tuber Bulking & Maturation
3-4 weeksFoliage may begin to yellow and decline; tubers develop their characteristic deep blue/purple color and firm up. Plant slows growth as it approaches senescence
Continue consistent watering but begin tapering 2-3 weeks before planned harvest. Avoid excessive nitrogen. Monitor soil moisture to prevent cracking and splitting.
Harvest Ready
Harvest windowFoliage has largely died back; tubers have hardened skins and exhibit full blue/purple coloration. Plant is ready for digging
Stop watering 1-2 weeks before harvest to allow skins to cure and set. Dig carefully to avoid bruising or cutting tubers. Handle gently during harvest and post-harvest curing.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Handpick egg clusters and beetles in early morning; use row covers on young plants; apply spinosad or neem oil if infestation is heavy; plant resistant varieties like this one which has some tolerance
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Use reflective mulches; apply insecticidal soap or neem oil; encourage natural predators; resistant varieties help reduce damage
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Ensure good air circulation and avoid overhead watering; apply copper fungicide or chlorothalonil as preventative starting in mid-summer; remove infected foliage immediately; plant resistant varieties (Arctic Blue has good resistance); destroy infected plant material
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Remove lower leaves as preventative; mulch to prevent soil splash; apply copper or sulfur-based fungicides; improve air circulation; destroy infected foliage
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Avoid planting in fields recently in sod; use beneficial nematodes (Heterorhabditis); turn soil in fall to expose larvae; use crop rotation
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Use row covers on young plants; apply diatomaceous earth or neem oil; encourage natural predators; avoid planting near brassicas
Uses
Nutritious & Colorful Cooking
CulinaryArctic Blue potatoes are excellent for roasting, boiling, mashing, and salads where their striking blue color and creamy texture create visually stunning dishes. The flesh retains its color through cooking, making them ideal for gourmet presentations and farmers market sales. [source]
Antioxidant-Rich Food
MedicinalThe deep blue/purple coloration indicates high levels of anthocyanins, powerful antioxidants linked to cardiovascular health, reduced inflammation, and improved cognitive function. Arctic Blue potatoes provide these beneficial compounds at higher levels than conventional varieties. [source]
Fingerling Versatility
CulinaryThe small, elongated shape is perfect for roasting whole, adding to potato salads, and creating elegant side dishes. They cook quickly and uniformly due to their consistent size. [source]
Heirloom Preservation & Home Storage
HouseholdArctic Blue's excellent storage quality and disease resistance make it ideal for home gardeners practicing food preservation and seasonal self-sufficiency. Well-stored tubers remain viable for months. [source]
Garden Pollinator Support
WildlifeThe blue-purple flowers attract pollinators and beneficial insects to the garden, supporting broader ecosystem health while the plant matures. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Arctic Blue reaches harvest maturity at 75-90 days after planting. Harvest when foliage has died back and tubers have hardened skins (typically mid-August to early September in most regions). Gently dig with a spade or fork, being careful not to cut or bruise tubers. Use a potato fork rather than a tiller to minimize damage. Allow freshly dug potatoes to cure in a cool (55-65°F), dark, well-ventilated space for 1-2 weeks before storage. This hardens skins and heals minor cuts. Store in cool (45-50°F), dark conditions with high humidity for 4-6 months; they prefer slightly cooler storage than regular potatoes.
Fun Facts
- 🌱 Arctic Blue's striking blue coloration comes from anthocyanins, the same beneficial compounds found in blueberries—making it one of the most nutrient-dense potato varieties available for home gardeners.
- 🌱 The name 'Arctic Blue' references this variety's exceptional cold hardiness and preference for cool-season growing, making it the potato of choice for northern gardeners and high-altitude regions.
- 🌱 When Arctic Blue potatoes are cooked, they retain their blue color rather than fading, which makes them a favorite among professional chefs and food photographers seeking visually dramatic presentations.
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