Sweet Potato Iowa City IA

Sweet potatoes are a long-season, tropical vegetable, so it's no surprise that they're grown mostly in southern states. It's possible for gardeners in Iowa City to grow these tasty, highly nutritious vegetables.

Pleasant Valley Garden Center
(319) 337-3118
1301 S Gilbert St
Iowa City, IA
Products / Services
Annuals, Bulbs, Chemicals, Crop Protection, Garden Center Marketing, Garden Centers / Nurseries, Garden Ornaments, Horticulture Companies, Mulch, Perennials, Pest Control Supplies, Plants, Roses, Seeds, Shrubs, Trees, Vines

Data Provided by:
Iowa City Landscaping & Garden Center
(319) 337-8351
520 Highway 1 W
Iowa City, IA
Products / Services
Annuals, Aquatics, Arrangement Accessories, Bulbs, Ceramic, Terra Cotta & Stone Containers, Chemicals, Christmas Accessories, Christmas Trees, Christmas Trees - Cut, Christmas Trees - Live B&B, Christmas Trees - Live Container, Conifers / Evergreens, Containers, Containers - Decorative, Crop Protection, Decorative Planters & Urns, Fertilizers, Furniture / Structures, Garden Center Marketing, Garden Centers / Nurseries, Garden Ornaments, Gardening Tools, Gardening Supplies, Gifts & Accents, G…

Data Provided by:
Joyce's Greenhouse
(319) 626-6525
2836 Kansas Ave Ne
North Liberty, IA

Data Provided by:
Lewis Brothers Tree Farm & Nursery
(319) 828-4569
1786 Iwv Rd SW
Cedar Rapids, IA
 
Hilltop Greenhouses Inc
(515) 275-2229
991 222nd Dr
Ogden, IA

Data Provided by:
Flowerama
(319) 337-5623
Petal Puckers, Inc
Iowa City, IA
Products / Services
Vegetables

Data Provided by:
Forever Green
(319) 337-5986
466 Sugar Creek Lane
North Liberty, IA
Products / Services
Annuals

Data Provided by:
Sunnyview Greenhouses
(319) 656-2589
5665 Hazelwood Ave Sw
Kalona, IA

Data Provided by:
Cedar Rapids Greenhouse
(319) 396-2744
3215 Johnson Ave NW
Cedar Rapids, IA
Products / Services
Annuals, Garden Centers / Nurseries, Greenhouse Growers, Perennials, Plants

Data Provided by:
Kramer Ace Hardware
(641) 424-6101
440 S Illinois Ave
Mason City, IA
Products / Services
Vegetables

Data Provided by:
Data Provided by:

Sweet Potato

Sweet potatoes are a long-season, tropical vegetable, so it's no surprise that they're grown mostly in southern states. However, it's possible for northern gardeners to grow these tasty, highly nutritious vegetables.

About This Plant

Most sweet potato varieties require at least 4 frost-free months to grow big potatoes. Sweet potatoes thrive in hot weather. The plants are very tender, can't take frost, and refuse to grow in cool soil. Plants yield best if night temperatures average 72 degrees F. Sweet potatoes are grown from "slips," or sprouts, which are available at nurseries in southern states or by mail. If you are growing your own slips, begin sprouting them about 8 weeks before planting.

Site Selection

Select a site with full sun and well-drained soil. Prepare the garden bed by using a garden fork or tiller to loosen the soil to a depth of 12 to 15 inches, then mix in a 2- to 4-inch layer of compost.

Planting Instructions

Unless the soil is very sandy, raise the planting bed 6 to 8 inches to make a ridge 1 foot or so wide. After danger of frost is past and the weather is warm (nights above 55 degrees F), set slips 12 to 18 inches apart along ridges or in rows that are 36 to 48 inches apart. Set the slips in the soil to the depth of the first leaves with several nodes (joints) underground. Firm the soil and make a shallow depression around the plant. Water beds generously for a few days.

Care

Control weeds by hoeing or mulch the area 4 to 5 weeks after planting. Provide deep watering in hot dry periods to increase yields. If planning to store part of the crop, don't give the plants any extra water late in the season. Contact your local County Extension office for controls of common sweet potato pests such as flea beetles.

If you live in a cool climate, protect sweet potato vines from late-season frost. If vines suffer frost damage, they can transfer rot to the roots below ground.

Harvesting

Sweet potato plants will keep growing as long as the weather stays warm. The vines don't die and signal harvesttime the way white potato vines do. If you garden in a hot climate that has a long growing season, you just have to keep checking the hills and harvest the roots at the best cooking stage.

It's baest to dig sweet potatoes on a dry, overcast day, or at least shade the unearthed roots from direct sun. Let the potatoes dry on the ground for a couple of hours. Don't wash the potatoes after the harvest, either. Sort any badly cut or bruised potatoes to eat first.

Click here to read more from Garden.org