SproutSmart
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Katahdin

Potato
Zone 13b Save Garden

Planting Schedule

Add Katahdin to your garden to build a schedule and get reminders.
Botanical illustration of Katahdin
95d to harvest

Sink your spoon into the cloud-soft promise of Katahdin—its flesh turns creamy and luminous when cooked, with a gentle, true-potato sweetness and a fine, velvety texture. This white potato forms dependable, well-shaped tubers that roast up beautifully to a golden, crisp exterior while staying tender within. Grow Katahdin for hearty, everyday versatility in classic preparations, from rich mash and comforting casseroles to robust roasting and skillet-ready sides.

Crop Dates

Growing note: Frost-free Zone 13b supports continuous outdoor production.
MilestoneDate
ClimateFrost-Free Climate
Growing ApproachContinuous Production

Crop Details

TraitValue
Days to Maturity95
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

Outdoor planting for Katahdin in Zone 13b typically begins around throughout the growing season. Wait until soil reaches at least 45°F before transplanting Katahdin.

Garden Alerts

Frost-free Zone 13b supports continuous outdoor production.

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Frequently Asked Questions

How often should I water Katahdin potatoes during the main growing phase?
During active tuber bulking (roughly weeks 4–8 after emergence), keep soil consistently evenly moist, not soggy. Water about 1 inch per week total (more in heat, less in cool weather), aiming for moisture to reach 6–8 inches deep where tubers form. Let the top 1–2 inches dry slightly between waterings to reduce risk of rot and scab.
How can I tell when Katahdin (Solanum tuberosum) is ready to harvest?
Harvest at about 95 days, when the plants’ foliage has yellowed and begun to die back. For new-to-medium sized tubers, you can carefully dig one plant early, but for full-size harvest wait until the vines are mostly dead. After digging, cure potatoes for 1–2 weeks in a cool, dark, airy place to toughen skins for storage.
Botanical illustration of Katahdin

Sink your spoon into the cloud-soft promise of Katahdin—its flesh turns creamy and luminous when cooked, with a gentle, true-potato sweetness and a fine, velvety texture. This white potato forms dependable, well-shaped tubers that roast up beautifully to a golden, crisp exterior while staying tender within. Grow Katahdin for hearty, everyday versatility in classic preparations, from rich mash and comforting casseroles to robust roasting and skillet-ready sides.

Today's Conditions

Outdoor planting for Katahdin in Zone 13b typically begins around throughout the growing season. Wait until soil reaches at least 45°F before transplanting Katahdin.

Garden Alerts

Frost-free Zone 13b supports continuous outdoor production.

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 after soil warms and keep hilling as plants grow to prevent tubers from greening.