Hayman

Family: Convolvulaceae Root Vegetable

Velvety-smooth and luminous, Hayman white sweet potatoes offer a delicate, naturally sweet flavor with a creamy, fine-grained bite that feels almost satin on the palate.

At maturity, the tubers develop a clean, pale interior and a gently rounded shape that roasts to a tender, golden softness and shines in mashed preparations, purées, and comforting casseroles. For gardeners who love dependable harvests, Hayman’s 90-day rhythm brings a refined, market-class white tuber that’s as beautiful as it is versatile—ideal for showcasing in your favorite seasonal dishes.

Light: Full SunMaturity: 90 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 24th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	None
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

Hayman’s white sweet potato cooks into a creamy, fine-grained texture with a gentle sweetness—no need to smother it with heavy spices. It’s built for silky mashes and purées that hold together, so your fork stays clean and your sauce clings instead of pooling.

Best Uses

roast until golden for tender caramel edges with an even, non-fibrous bite
whip into smooth mash that stays luxurious without getting stringy
purée and fold into casseroles for a silky, comforting interior
bake or steam and dress simply with butter and salt to let the mild sweetness read clearly

Flavor Profile

subtle natural sweetness creamy, fine-grained texture velvety, satin-like mouthfeel when cooked clean, mild root character

Kitchen Pairings

brown butter black pepper garlic sage chicken stock Greek yogurt

Frequently Asked Questions

What’s a common pest or disease problem for sweet potato (Ipomoea batatas), and how do I fix it?

One of the most common issues is sweet potato weevil damage, which shows up as tunnels and holes in roots. Inspect plants regularly and remove infested roots early; rotate beds each year and avoid planting sweet potato in the same spot. For fungal problems like stem rot, space plants for airflow and water at the soil line instead of wetting leaves.

How often should I water Ipomoea batatas during active tuber (root) growth?

During the main bulking phase (roughly mid-season through most of the last third), keep the soil evenly moist but not soggy, aiming for light moisture 1–2 inches down. Water deeply about 1–2 times per week depending on heat and soil texture, and reduce frequency if your soil stays wet or drainage is slow.

How do I tell when my Ipomoea batatas is ready to harvest?

Harvest when foliage begins to yellow and vines slow down, typically around 90 days from planting for your variety. Gently dig one or two roots to check size and skin set—skins should feel firm and not rub off easily. Avoid leaving roots in cold, wet soil; harvest before frost and cure them right after.