SproutSmart
SproutSmart™ Intelligent Garden Sowing

Blue Potato

Potato
Zone 1a Save Garden

Planting Schedule

Add Blue Potato to your garden to build a schedule and get reminders.
Botanical illustration of Blue Potato
90d to harvest

Velvety, slate-blue skin gives way to a vivid, electric-blue interior that’s as striking as it is satisfying—an eye-catching harvest that turns every basket into a keepsake. Blue Potato forms sturdy, medium-to-large tubers with a smooth, well-set shape and a firm, creamy bite when cooked, making it ideal for roasting, mashing, and strikingly colorful sides and spreads. Grow it for the drama: deep color, dependable performance, and a distinctive look that elevates any table.

Crop Dates

Growing note: Zone 1a has only 30 frost-free days — shorter than this crop's 90-day maturity. Outdoor planting is not viable; use protected cultivation.
MilestoneDate
Last FrostJun 15th
Growing ApproachProtected Environment Only

Crop Details

TraitValue
Days to Maturity90
Sun RequirementsFull SunFull sun
Growth HabitClumping
Support NeededNone
Planting DepthNormal
Germination Temp (°F)55
Min Soil Temp (°F)45
Min Night Temp (°F)28
Harden Off (days)Not Required

Today's Conditions

Wait until soil reaches at least 45°F before transplanting Blue Potato.

Garden Alerts

Zone 1a has only 30 frost-free days — shorter than this crop's 90-day maturity. Outdoor planting is not viable; use protected cultivation.

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Frequently Asked Questions

What should I do if my blue potato plants get late blight or leaf spot?
Late blight often starts as irregular, water-soaked spots with a grayish growth on leaf undersides, spreading fast in cool, wet weather. Remove and discard infected leaves (don’t compost), improve airflow by spacing plants well, and if the problem is active apply a labeled potato fungicide early and repeat according to the label—especially after rainy periods. Leaf spot is usually more localized; prune off affected foliage and avoid wetting leaves when watering.
How often should I water blue potatoes during the main growing phase?
During tuber set and bulking (about weeks 4–10 after planting), keep soil evenly moist but not waterlogged—aim for watering whenever the top 1–2 inches feel dry. A typical home schedule is every 3–5 days depending on heat and rainfall, giving enough water to wet the root zone (about 6–8 inches deep). Stop heavy watering about 10–14 days before harvest so skins set and tubers store better.
Botanical illustration of Blue Potato

Velvety, slate-blue skin gives way to a vivid, electric-blue interior that’s as striking as it is satisfying—an eye-catching harvest that turns every basket into a keepsake. Blue Potato forms sturdy, medium-to-large tubers with a smooth, well-set shape and a firm, creamy bite when cooked, making it ideal for roasting, mashing, and strikingly colorful sides and spreads. Grow it for the drama: deep color, dependable performance, and a distinctive look that elevates any table.

Today's Conditions

Wait until soil reaches at least 45°F before transplanting Blue Potato.

Garden Alerts

Zone 1a has only 30 frost-free days — shorter than this crop's 90-day maturity. Outdoor planting is not viable; use protected cultivation.

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 45°F for reliable germination and early growth.

Expert Note

Plant certified seed potatoes when soil has warmed and they can be covered lightly without waterlogging, then hill as vines grow for higher tuber yield.