Purple Majesty

Potato

90d to harvest

Velvety skins in Purple Majesty arrive at maturity in a rich, inky blue-purple that feels almost satin under the fingers, with a strikingly colored interior that turns deep violet when cooked. The flesh is satisfyingly firm yet tender, holding its shape beautifully for roasting and pan-frying, while its vivid color makes show-stopping mash and creamy soups. Grow Purple Majesty for a dramatic harvest you’ll want to serve often—its color is the star, from first harvest to the last spoonful.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Mar 23rd
Transplant / Sow Outdoors	Mar 23rd
Harvest Begins	Jun 21st
Harvest Ends	Nov 12th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	55
Min Soil Temp (°F)	45
Min Night Temp (°F)	35
Harden Off (days)	Not Required

Recommended Companions

Taishan Yellow Marigold

Purly Chives

Frequently Asked Questions

How often should I water Purple Majesty potatoes during the main growing phase?

During active tuber bulking (roughly from when plants are flowering until about 3–4 weeks before harvest), keep soil evenly moist but not waterlogged. Water deeply about 1–2 times per week depending on weather, aiming for about 1 inch (2–3 cm) of water total weekly; sandy soils may need more frequent watering while heavy soils need less. If the top few inches dry out completely, bump the watering, but avoid standing water to prevent tuber rots.

How can I tell when Purple Majesty (Solanum tuberosum) is ready to harvest?

Harvest when plants naturally begin to yellow and die back, typically around 90 days from planting for Purple Majesty. You can check by gently digging alongside the row—tubers should be well-formed and the skins should hold firm when rubbed (they shouldn’t peel easily). For best storage quality, wait about 10–14 days after the tops fully die back before lifting.