Diane

Family: Convolvulaceae Root Vegetable

Velvety, sunset-orange flesh greets you with a naturally sweet, honeyed flavor and a tender, creamy texture that feels almost silk-smooth.

“Diane” forms well-shaped roots with a rich orange interior and a sturdy, vigorous habit that reliably reaches maturity in about 95 days. Ideal for roasting and baking, it also shines in smooth purées and hearty casseroles where its color and sweetness take center stage.

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	None
Planting Depth	Normal
Germination Temp (°F)	80
Min Soil Temp (°F)	65
Min Night Temp (°F)	55
Harden Off (days)	7

Culinary Notes

Chef's Note

This orange sweet potato “Diane” is built for that spoon-smooth, custardy bite—roast it hard to coax real caramelization, not just softness. Keep the sweetness honest with acid or a tangy dairy, and it’ll stay velvety instead of cloying.

Best Uses

high-heat roast until caramelized at the edges and melting in the center
baked whole for spoonable, silk-smooth flesh
silky purée or mash that holds without turning grainy
hearty casserole where sweetness needs to be balanced and browned

Flavor Profile

naturally sweet honeyed flavor velvety, creamy interior soft, tender starch that mashes cleanly slight earthy warmth on the finish

Kitchen Pairings

butter maple syrup cinnamon lime juice smoked paprika goat cheese

Frequently Asked Questions

What pest or disease most commonly affects Ipomoea batatas (sweet potato), and what should I do?

One of the most common serious problems is sweet potato weevil (and associated damage), which causes tunnels in roots and makes them unmarketable. Inspect slips and storage roots before planting, plant in clean beds, and use disease-free slips; if you see signs, remove affected plants early and avoid replanting sweet potatoes in the same spot for several years. Keep the bed weed-free because weeds can host insects and reduce airflow around foliage.

How often should I water Ipomoea batatas during the main growing phase, and what soil moisture level is best?

After planting, keep the top 2–3 inches of soil consistently moist until slips are established, then switch to deep, less-frequent watering. During active vine growth, water when the top inch starts to dry, aiming to keep the root zone evenly moist—not waterlogged—because soggy soil can reduce root quality. Stop or sharply reduce watering about 2–3 weeks before harvest to help roots cure and lessen disease risk.

How can I tell when Ipomoea batatas is ready to harvest?

Harvest sweet potatoes when vines have begun to yellow and die back, typically around 95 days after planting for your crop. Carefully dig one or two roots first to confirm the size and that the skin is set (it should not rub off easily). Use the first frost as your deadline—sweet potatoes are frost-sensitive, so harvest before any freeze, then cure them for best storage.