SproutSmart
SproutSmart Intelligent Garden Sowing

Red Ruby

Family: Solanaceae Root Vegetable

Planting Schedule

Add Red Ruby to your garden to build a schedule and get reminders.

Velvety skins in rich ruby-red set the stage for Red Ruby’s quietly luminous flesh—firm, creamy, and wonderfully smooth when cooked.

With a steady 95-day rhythm, this market-class red potato forms dependable, oval tubers that hold their character beautifully for roasting, mashing, and hearty sauces, while also shining in fresh salads for a crisp, clean bite. Grow Red Ruby for a harvest that looks as sumptuous as it tastes—an elegant red tuber with a satisfying, spoonable texture.

Light: Full SunMaturity: 95 DaysHabit: Clumping

Botanical illustration of Red Ruby

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 25th
Transplant / Sow OutdoorsApr 25th
Harvest BeginsJul 29th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity95
Sun RequirementsFull SunFull sun
Growth HabitClumping
Support NeededNone
Planting DepthNormal
Germination Temp (°F)45
Min Soil Temp (°F)45
Min Night Temp (°F)28
Harden Off (days)Not Required

Culinary Notes


Chef's Note

Red Ruby’s smooth, creamy flesh is the kind of potato that mashes without going starchy-gritty and roasts up with that crisp/creamy split personality. It’s also salad-friendly because it holds shape and bite, so the dressing clings without turning the whole bowl pasty.

Best Uses

  • roasting with crisp edges and a creamy center
  • buttery mash with a glossy, lump-free finish
  • hearty potato-and-stock sauces that thicken without turning gluey
  • fresh salads where it keeps a crisp bite and doesn’t crumble

Flavor Profile

velvety, creamy interior clean, mild potato sweetness gentle earthiness smooth, spoonable texture when cooked

Kitchen Pairings

butter sour cream white pepper fresh dill chicken stock leeks

Frequently Asked Questions


What pest or disease problem is most common on Solanum tuberosum (potatoes like Red Ruby), and how do I control it?
Watch for late blight (often starts as dark, water-soaked leaf spots that spread quickly during cool, wet weather). Remove and destroy infected foliage immediately, avoid overhead watering, and improve airflow by spacing plants so leaves dry fast. If the problem keeps appearing, apply a labeled late-blight fungicide early in the infection cycle, rotating modes per the product label to reduce resistance.
How often should I water Red Ruby potatoes during the main growing phase?
During active tuber bulking, keep soil consistently evenly moist—aim for about 1 inch (2.5 cm) of water per week, split as needed for hot spells. Don’t let beds swing dry for long periods, because uneven moisture can reduce tuber size and increase misshapen tubers. Check moisture 2–3 inches down; water when it’s drying there, but avoid waterlogging that can trigger disease.
How can I tell when Red Ruby potatoes are ready to harvest?
Harvest when plants begin to yellow and die back, typically around 95 days from planting for mature Red Ruby. For “new potatoes,” you can dig earlier once plants have flowered, but for full size wait until foliage has largely senesced. Before lifting, gently scrape soil back and check that tubers have set skins that don’t rub off easily.