How to Grow Sweet Potatoes in Containers: Best Method
Growing sweet potatoes in containers is an excellent solution for gardeners with limited space.
Sweet potatoes are a nutritious and versatile addition to any diet, offering a rich source of vitamins, fiber, and complex carbohydrates. But what if you have limited space, or perhaps only a balcony or small patio for gardening?
The good news is that you can grow sweet potatoes in containers, making this delicious and healthy crop accessible to virtually anyone with a bit of sun and some creativity.
In this article, we’ll explore the steps and techniques for growing sweet potatoes in containers.
Choosing the Right Container
Selecting the appropriate container is crucial when growing sweet potatoes. Follow these guidelines:
Container Size: Opt for a container that is at least 18 inches deep and 24 inches in diameter. This allows ample space for sweet potato roots to develop and ensures a healthy harvest.
Material: Containers can be made from various materials, including plastic, wood, or fabric. Fabric pots are an excellent choice for sweet potatoes, as they provide good aeration and drainage.
Drainage: Whichever container you choose, make sure it has drainage holes at the bottom to prevent waterlogged soil, which can rot the sweet potato tubers.
Preparing the Potting Mix
Creating the right potting mix is essential for healthy sweet potato growth:
Loose and Well-Draining: Sweet potatoes prefer loose, well-draining soil. Use a mixture of garden soil, compost, and sand to ensure good drainage.
Rich in Organic Matter: Mix in compost to enrich the soil with nutrients and provide the sweet potato plants with the necessary minerals for growth.
Planting Sweet Potato Slips
Sweet potatoes are typically grown from “slips,” which are sprouts or shoots from an existing sweet potato. Here’s how to plant them in containers:
Purchase Slips: Obtain sweet potato slips from a reputable nursery or online source. These are typically available in the spring, and they should be about 6-8 inches long.
Root the Slips: Before planting, place the sweet potato slips in a jar of water. This encourages them to develop roots, which will help them establish themselves more quickly in the container.
Planting: When the slips have grown roots (usually in a week or two), plant them in the prepared container. Bury each slip about an inch deep, spacing them 12-18 inches apart.
Caring for Sweet Potato Plants
Sweet potatoes require some care to thrive in containers:
Sunlight: Provide your container with full sun, at least 6-8 hours of direct sunlight daily.
Watering: Keep the soil consistently moist, but avoid overwatering. Sweet potatoes prefer slightly drier conditions than some other vegetables.
Fertilization: Sweet potatoes benefit from a balanced, slow-release fertilizer applied at planting and a second application when the plants start to vine.
Vining: Sweet potatoes are vigorous growers. As they develop, they will produce vines that can trail over the edge of the container. This is normal and contributes to a higher yield.
Harvesting Sweet Potatoes
Harvesting sweet potatoes from containers is a straightforward process:
Timing: Sweet potatoes are typically ready for harvest 90-120 days after planting, or when the leaves begin to turn yellow and the vines start to die back.
Harvest Gently: Carefully dig up the sweet potatoes from the container. Be gentle to avoid damaging the tubers.
Curing: After harvesting, cure the sweet potatoes by placing them in a warm, humid location for about a week. This helps the tubers develop their signature sweetness.
Growing sweet potatoes in containers is an excellent solution for gardeners with limited space. With the right container, well-draining soil, and proper care, you can enjoy a bountiful harvest of delicious, homegrown sweet potatoes.
Plus, container gardening allows you to savor the satisfaction of cultivating your own nutritious crop, even in confined urban spaces. So, don’t let limited space hold you back; start your sweet potato container garden today and reap the rewards at harvest time.