How to Grow Sweet Potato Plant Outdoors

Sweet potatoes are delicious, versatile, and packed with nutrients. Growing your own sweet potato plant outdoors can be a rewarding and cost-effective way to enjoy these tasty tubers. Whether you have a large garden or a small balcony, here are some tips on how to successfully grow sweet potato plants outdoors.

Choosing the Right Variety

The first step in growing sweet potato plants outdoors is to choose the right variety. There are different types of sweet potatoes, each with its own unique flavor and growth characteristics. Some popular varieties include Beauregard, Covington, and Jewel. It’s important to choose a variety that is suitable for your climate and growing conditions.

Preparing the Soil

Sweet potatoes thrive in loose, well-draining soil. Before planting your sweet potato slips (more on that later), prepare the soil by removing any weeds or grass and loosening it with a garden fork or tiller. If your soil is heavy or clay-like, amend it with organic matter such as compost or well-rotted manure to improve drainage and fertility.

Starting Sweet Potato Slips

Sweet potato plants are usually grown from “slips,” which are small sprouts that grow from a mature sweet potato. You can purchase sweet potato slips from nurseries or online, or you can start your own slips at home.

To start your own slips, select a healthy sweet potato and place it in a jar filled with water. Make sure that about half of the sweet potato is submerged in water. Place the jar in a warm spot with plenty of sunlight. Within a few weeks, you should start seeing sprouts emerging from the sweet potato. Once the sprouts are around 4-6 inches long, carefully twist them off the sweet potato and place them in another jar filled with water. Roots will start to grow from these sprouts within a week or two.

Planting the Slips

Once your sweet potato slips have developed roots, they are ready to be planted outdoors. Wait until all danger of frost has passed and the soil temperature is consistently above 50°F (10°C). Dig a row or raised bed for your sweet potatoes, making sure it is wide enough to accommodate the spreading vines. Space the slips about 12-18 inches apart and bury them up to the top few leaves, leaving just a few inches exposed.

Providing Proper Care

Sweet potatoes require regular care to ensure optimal growth and yield. Here are some important care tips:

Watering

Sweet potato plants need consistent moisture, especially during the first few weeks after planting. Water the plants deeply once or twice a week, depending on rainfall and soil conditions. Avoid overwatering, as it can cause rotting of the tubers.

Fertilizing

Sweet potatoes are heavy feeders and benefit from regular fertilization. Apply a balanced organic fertilizer at planting time, and then side-dress the plants with compost or a nitrogen-rich fertilizer every few weeks throughout the growing season.

Mulching

Mulching is essential for sweet potato plants as it helps retain moisture, suppress weeds, and regulate soil temperature. Apply a layer of organic mulch, such as straw or shredded leaves, around the plants after they have been watered and weeded.

Controlling Pests and Diseases

Sweet potato plants can be susceptible to certain pests and diseases, including sweet potato weevils, aphids, and fungal infections. Monitor your plants regularly for any signs of infestation or disease and take appropriate measures to control them. This may include using organic insecticides or fungicides or employing natural pest control methods like introducing beneficial insects.

Harvesting Sweet Potatoes

Sweet potatoes are typically ready for harvest between three to four months after planting. The foliage will start to yellow and die back, indicating that the tubers are mature. Carefully dig up the sweet potatoes, taking care not to damage them with your tools. Allow them to cure in a warm, dry place for about a week before storing them in a cool, dark area.

Enjoying Your Homegrown Sweet Potatoes

Once you have harvested your sweet potatoes, the possibilities are endless. Sweet potatoes can be roasted, mashed, baked, or turned into delicious fries or pies. They are also great in soups, stews, and salads. With your own homegrown sweet potatoes, you can enjoy the freshest and most flavorful tubers all year round.

Growing sweet potato plants outdoors is a rewarding experience that allows you to enjoy the goodness of this versatile vegetable straight from your own garden. By following these tips and giving your sweet potatoes the care they need, you’ll be rewarded with a bountiful harvest and delicious meals for months to come.