All Blue

Potato

Zone 12b Save Garden

🌱 95d to harvest Upright

All Blue delivers an eye-catching, velvety-deep blue tuber with a creamy, richly colored interior that stays vivid after cooking.…

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Jan 1st
Transplant / Sow Outdoors	Jan 1st
Harvest Begins	Apr 6th
Harvest Ends	Dec 31st

Crop Details

Trait	Value
Days to Maturity	95
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	50
Min Soil Temp (°F)	45
Min Night Temp (°F)	35
Harden Off (days)	Not Required

Recommended Companions

Frequently Asked Questions

How do I manage powdery mildew on All Blue (about 95 days) when it shows up on my foliage?

Look for white, powdery patches on leaves and stems, usually starting midseason on plants grown in dense growth. Remove the worst affected leaves, improve airflow by spacing and pruning nonessential foliage, and water at the soil line so leaves stay dry. If it keeps spreading, spray a labeled potassium bicarbonate or sulfur product and repeat as directed, especially after humid stretches.

How often should I water All Blue during its main growing phase to keep tubers developing well?

During the main growth period (roughly after plants are established and until near maturity), keep soil evenly moist but not soggy—about 1 inch of water per week, split into 2–3 waterings during hot weather. Check by digging 2–3 inches down: if it feels dry at that depth, water; if it’s muddy, hold off and let it dry slightly to avoid rotting.

When are All Blue tubers ready to harvest, and what signs should I look for?

Harvest at about 95 days from planting when the plants begin to yellow and most foliage has died back, and the tuber skins feel firm and not rub off easily. For a final check, gently dig one plant to confirm tuber size and skin set. Avoid harvesting right after heavy rain—aim for dry conditions so skins cure better and storage lasts longer.

All Blue delivers an eye-catching, velvety-deep blue tuber with a creamy, richly colored interior that stays vivid after cooking. Expect a smooth, medium-firm texture and a pleasantly earthy, nutty flavor that shines in roasted wedges, pan-fried slices, and hearty mashes—plus it’s a standout for color-forward soups and gratins. With about 95 days to maturity, this blue potato is a rewarding garden crop that turns harvest into a true visual delight.

Sowing Tips

Transplant Conditions

Wait until soil reaches 45°F and nights stay above 35°F before moving outdoors.

Expert Note

Plant certified seed potatoes (or properly chitted pieces) when soil is cool but workable, since potatoes don’t benefit from indoor transplanting.