Beniharuka

Family: Convolvulaceae Root Vegetable

Sink your spoon into Beniharuka’s rich, honeyed orange flesh—silky-smooth and deeply sweet, with a warm, velvety texture that feels almost custard-like.

At maturity (about 95 days), this Orange Sweet Potato forms attractive, well-shaped roots that roast to a caramel-kissed tenderness and shine in mashes, gratins, and hearty purées. Grow Beniharuka for a dependable harvest of glowing color and a naturally luscious flavor that elevates every spoonful.

Light: Full SunMaturity: 95 DaysHabit: Vine

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

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jul 29th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	95
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	75
Min Soil Temp (°F)	70
Min Night Temp (°F)	55
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Beniharuka cooks up with that rare, spoon-coating smoothness—less starchy grunt, more custard-core sweetness. Roast until browned at the edges or smash into a purée, and it’ll take on caramel and vanilla-cinnamon heat without turning grainy.

Best Uses

hot, caramel-kissed roasting (whole or thick wedges)
extra-silky mashes and spoonable purées
gratin layering where it turns creamy and cohesive
dessert-leaning baking or curried sweet-savory applications

Flavor Profile

honey-sweet flavor silky-smooth, custard-like texture when cooked warm, velvety caramel notes on roasting

Kitchen Pairings

cinnamon brown butter maple syrup lime smoked paprika vanilla

Frequently Asked Questions

Why are my Beniharuka plants developing sticky leaves and black sooty mold, and what should I do?

That combination often points to aphids feeding on Beniharuka, with sooty mold growing on the honeydew. Spray the plants with a strong jet of water to knock off aphids, then apply insecticidal soap or neem (especially on undersides) and repeat every 5–7 days until new growth is clear. Check twice weekly and remove heavily infested leaves to slow the buildup of honeydew and mold.

How often should I water Beniharuka during the main growing phase?

During active growth (roughly weeks after seedlings establish until toward maturity at ~95 days), keep the soil evenly moist but not soggy—aim for about 1 inch of water per week total, adjusted for heat and rainfall. Water deeply when the top 1 inch of soil dries out, since Beniharuka tolerates brief dryness better than consistently wet roots. If you see wilting while the soil is wet, pause watering and improve drainage rather than adding more water.

How can I tell when Beniharuka is ready to harvest?

Beniharuka is ready when pods/roots reach their expected size for the variety and the foliage is still green but plants look mature (typically around day 95). For root-type harvests, gently lift one plant to check size and then harvest the rest at the same stage; for any pods, harvest when they’re firm and fully developed but not overly tough. Don’t wait for yellowing leaves to fully dry before harvesting—quality can decline if left too long.