The Cost of Growing Sweet Potatoes
Sweet potatoes can be attractive for small farms because they store well, have strong consumer demand, and can be sold over a long season. They need a warm growing period and careful curing, but they often fit well into diversified direct market systems. The economics improve when the farm can produce good shape and hold roots for later sales.
Startup costs
Startup costs usually include slips, bed preparation, fertility, and irrigation, with black plastic or other warming systems used in some regions. Harvest tools, curing space, and storage with suitable temperature conditions are important parts of the setup. Because sweet potatoes spread across the bed, field layout and weed control planning also affect establishment cost. Purchased slips can be a significant early season input.
Ongoing costs
Recurring costs include transplanting labor, irrigation, weed control, harvest, curing, grading, and storage monitoring. Harvest can be labor intensive because roots bruise easily and must be handled carefully. Storage shrink and sorting of damaged roots are ongoing costs when sales continue for months.
Yield & how it sells
Sweet potatoes can produce high yields by weight in a relatively compact area when the season is warm enough. They are sold by the pound, in mixed grade bags, or as premium specialty roots in direct markets. Curing improves eating quality and can support later season sales when fresh field crops are less abundant.
What makes it profitable
Sweet potatoes can be a strong moderate to high value storage crop for small growers with the right climate and postharvest setup. They often sell well through CSA shares, farmers markets, and winter retail because customers use them regularly and accept seasonal local product. Profitability weakens if curing or storage is poor, or if root size and shape are inconsistent enough to increase culls. The crop can support cash flow after the main harvest season, which makes it strategically valuable beyond its field yield alone.
Financial risks
Main risks include cool season underperformance, harvest damage, poor curing, storage rot, and misshapen roots that reduce market grade. Wet soils can make harvest difficult and increase loss. Market prices are usually steadier than for some tender crops, but quality problems can still lower returns sharply.
Tips to improve returns
Make sure your climate, planting date, and curing setup are aligned before expanding production. Separate premium retail roots from seconds and find an outlet for lower grade product so total crop value is not lost. Use local Cooperative Extension and your Small Business Development Center for budgets that include curing and storage costs.
General planning information, not financial or investment advice, and not a guarantee of profit. For real budgets, work with your Cooperative Extension office and local Small Business Development Center. Page updated Aug 4, 2026.