how to grow japanese sweet potato

Dig narrow holes for the sweet potato slips; the holes should be long enough to plant the slips, while leaving the remaining leaves exposed above ground. There are several different varieties to try. Because they are sown by vine cuttings rather than seeds, sweet potatoes are relatively easy to plant. Then, transfer to an area with some filtered sunlight until the sprouts are ready to plant. The phytonutrients associated with different colors in sweet potato do have different health properties. Plant the Slips. Buy the sweet potato in the best time of year, November to January. It maintains its purple color very well through the cooking process. How to plant. The vigorous growth and drought tolerance of ornamental sweet potato vines makes them great choices for mixed containers and hanging baskets. How to Grow Sweet Potatoes in a Container With a Trellis, How to Keep Sweet Potato Slips Alive Until You're Ready to Plant Them, North Carolina State University Extension: Identifying Boniato-type Sweetpotato Cultivars Adapted to NC Growing Conditions. Make sure 1/4- 1/2 of the potato sticking outside the water (picture shown is after the potato has been growing about 4 weeks) and put on a windowsill or a shelf for 4-8 weeks Change the water a couple of times a week with purified water When to Harvest Sweet Potatoes. Through its travels it developed many different names, but its real and true name is ‘Okinawan’. Here are some of the other varieties to consider that are easier to find and work well in U.S. gardens. You'll be happy to know sweet potatoes can be grown in containers. Here are some key instructions on curing and storing sweet potatoes. The variety was unidentified and Mike began propagating it. It offers high-yield and disease-resistance. Plant sweet potatoes in hilled rows, berms, or raised beds. Because the rapidly growing vines shade out weeds, little weeding is needed. There are over 400 different sweet potato varieties around the world, figure out which is best for your garden. There are hundreds of different orange sweet potatoes to grow – here are the top five recommended by the experts. A sweet potato will start to grow "slips", which are stems with leaves. Water the plants deeply about once weekly throughout the growing season. Prick sweet potatoes all over with a fork; arrange on a parchment-lined baking sheet. Clip several sweet potato slips off when the vines are about 10 to 12 inches long. Sweet potatoes may be associated with the southern U.S., but they will grow in just about any garden. You love to DIY. Sweet potatoes come in lots of different shapes, colors, and sizes, and today, we're breaking down everything you need to know about the white sweet potato. A hanging basket is a good choice for this plant’s vining habit. Yams and sweet potatoes have been confused for centuries, find out the difference and which one is best to plant in your garden. "Satsuma potatoes" is one of the Japanese names for sweet potatoes (Ipomoea batatas). Japanese sweet potatoes, on the other hand, are reliable in their ability to brown and char: If you're going to make sweet potato oven fries, look no further. All rights reserved. To create sprouts, carefully wash your potatoes and cut them either in half or in large sections. In the tropics, the crop can be maintained in the ground and harvested as needed for market or home … The flavor is sweet and pleasant, and the texture is creamy. Strip all the leaves from the vine except for the last one or two leaf sets closest to the end of the vine. We love to DIY. Japanese sweet potatoes can grow rather long, so if the potato doesn't fit in the container, you can cut off the bottom portion, allow the exposed flesh to callous overnight and plant it with the cut, calloused end face down in the pot. Remove from the oven and split the skins. It is noted that the first purple sweet potato was bred by the Japanese and grown specifically on Okinawa, hence its name. It is noted that the first purple sweet potato was bred by the Japanese and grown specifically on Okinawa, hence its name. When the roots have grown in, it's time to plant your slips in soil. (A 10-foot row will produce 8 to 10 pounds of potatoes.) Now place the potato in a sunny window and/or under a grow light and let it … Harvest the potatoes after about three to five months after planting, depending on the growth rates of the Japanese sweet potato cultivar you choose. She received her Bachelor's degree from West Virginia University. For starters, a sweet potato isn't a potato at all, meaning it's not a member of the Solanum tuberosum potato family from which French fries, mashed potatoes, and latkes are made; their composition of simple sugars and complex starches are quite different. You might still need to sift through the soil to find all the potatoes, but this method prevents damage to the sweet potatoes that commonly occurs when a hoe is used to dig up the potatoes. The part we eat is the tuberous root of a vining plant that is closely related to morning glories (Ipomoea tricolor) and youll easily see the similarity in leaves to the sweet potato vines we now grow as ornamentals. Growing ‘Okinawan’ sweet potatoes in U.S. climates can be done, but the variety was specifically bred for the weather that is consistent of the islands such as Okinawa and Hawaii. When growing ornamental sweet potato vines, there are a number of varieties to choose from. It kind of looks cool that way, too. To create the perfect environment, create long, wide, 10-inch-high ridges spaced 3½ feet apart. Roast for up to one hour. Stokes Purple was discovered in 2003 and more friendly to U.S. growing conditions. Roast until very tender, about 1 hour, depending on size. You can snap those off the mother sweet potato and plant those individual slips into the ground or in a large container in the home. Browse a full list of topics found on the site, from accessories to mudrooms to wreaths. Plants need about 1 inch of water weekly, but you might not have to apply water if you receive sufficient rainfall. Sweet potatoes prefer a soil pH of 5.5 to 6.5. How to Grow Japanese Sweet Potatoes and Potato Vines 1. Hand-weeding is required when you first plant the slips; add an inch of mulch after about two weeks. Starting Your Slips Choose a sweet potato. Water the potato at planting and allow the top 1 to 2 inches of soil to dry between watering to avoid problems with rot. The traditional way to grow sweet potato slips is to wash the sweet potato and place half of it in water, holding it above the water with some toothpicks. However, since the plant is patented, this means only those that have a license can produce it; so finding slips for home gardeners isnearly impossible. Space them out on a baking sheet (preferably parchment-lined). Check that the slips are leafy and over 3 inches (7.6 cm) tall. Plant. So in case you've ever been tempted, take care not to substitute a sweet potato for an Idaho willy nilly; in some cases it may work … Consider them when planning for your veggie garden: ‘AllPurple’, ‘Purple Majesty’ or ‘Purple Passion’. Look at the edge of a sweet potato and get the one syrup comes out. Baked Japanese Sweet Potato. Find solutions for sourcing organic sweet potato slips and fertilizing with naturally derived nutrients. Sweet potatoes will grow in poor soil, but deformed roots may develop in heavy clay or long and stringy in sandy dirt. Fill a planter with well-draining potting mix, leaving about 2 inches from the edge. Cure the fresh potatoes for five to 10 days in a dry location with temperatures between 85 to 90 degrees. Growing an Okinawan sweet potato vine is rewarding as long as you have the right climate. The purple potato made its way to Hawaii and then to the U.S. mainland. In an article for the LA Times, it is believed that Stokes Purple is possibly a variety that was introduced by Japanese sweet potato breeders who had a number of purple varieties already in the marketplace. To successfully grow sweet potatoes you will need a frost-free growing season of 100 days (or more). Fill a planter with well-draining potting mix, leaving about 2 inches from the edge. My top 5 sweet potato … Japanese sweet potatoes (Ipomoea batatas) might refer to the alternative common name of a group called boniato potatoes or a specific cultivar of boniato (I. batatas "Japanese"). Here’s how it’s done: About six weeks before it’s time to plant sweet potatoes outdoors, place the roots in a box of moist sand, sawdust, or chopped leaves in a warm spot (75 to 80 degrees). Brown Horse Sweet Potatoes. Space each slip … Don't miss your favorite shows in real time online. A former cake decorator and competitive horticulturist, Amelia Allonsy is most at home in the kitchen or with her hands in the dirt. Use a rototiller to incorporate the amendments with the top 12 inches of soil. Place each section in a jar or glass of water with half of the potato below the water and half above. Ideally, the soil pH should be between 5.8 and 6.2, but you can add iron sulfate to lower the pH, thus making the soil more acidic; if soil pH is too low, add agricultural lime to sweeten the soil, making it more alkaline. In addition to waiting until the vines reach the appropriate size before cutting and planting the slips, you should also wait until it is warm outside, about one month after the last frost. Short on garden space? © Copyright 2020 Hearst Communications, Inc. Japanese sweet potatoes love the heat, so make sure you plant them outdoors after the soil has warmed. Japanese sweet potatoes (Ipomoea batatas) might refer to the alternative common name of a group called boniato potatoes or a specific cultivar of boniato (I. batatas "Japanese"). Some people will tell you to root in water without the soil, but plants tend not to form as strong of root systems this way. Set the pot in a warm location where it receives full sun. The easiest way to grow lots of sweet potato slips is by submerging the sweet potato in a cup full of water. Lift the vines up off the ground as you apply the mulch; if you accidentally cover the vines with mulch, new plants might take root. Let's get together. You can follow the process above and then plant the tuber in the ground or you can grow sweet potatoes from a seedling. Beauregard is one of the world’s most popular sweet potatoes. Hawaiian sweet potato, which is a variety called ‘Okinawan’, but is commonly called purple yam, Japanese purple potato or Japanese Sweet Potato. Learn when and how to harvest and cure sweet potatoes to enjoy during the winter months. Take a soil sample from a planting site that receives full sun and test the sample, using a home soil testing kit to... 2. A commonly used herbicide to rid the soil of any unwelcome plants that may interfere with growth is DCPA, also known as Dacthal. Insert the slip in the hole, fill the hole with soil and pack gently to ensure good contact between the soil and the vine slip. Besides that, however, sweet potato strains have a very similar nutritional profile.Rich in vitamins, minerals, and phytonutrients, sweet potato has been named the ‘healthiest of all vegetables’ by The Center for Science in the Public Interest []. Once your sweet potatoes have sprouted, you have to separate them … Serve and tuck in. The slips will grow fast and develop roots. Her work has been published in the San Francisco Chronicle and on other websites. These potatoes can prove difficult to find, so if you have an organic Japanese potato, you can grow the vines, then plant pieces of the vines, called slips, to grow your own Japanese sweet potato crop in your garden. Loosen the soil around the plant crown and pull the plant straight out of the ground. Pull the toothpicks out of the potato and cover it completely with soil. In 2003, he was awarded these purple sweet potatoes as a prize at the state fair. They are bred for the beauty of their leaves rather than edible tubers, and the vines from these plants make them look more like a morning glory or clematis than a member of the potato family. Use a well-draining pot large enough to accommodate it comfortably. © 2020 Discovery or its subsidiaries and affiliates. Whether it is an edible or ornamental sweet potato, flowers are not usually part of the equation. The curing process improves the sweet potato flavor, and potatoes grow a protective second skin that allows them to be stored for several months, rather than only one or two months. Place the whole Japanese sweet potato in the soil, leaving a bit of the pointed tip protruding from the soil. How to Grow Satsuma Potatoes. Get video instructions about kitchens, bathrooms, remodeling, flooring, painting and more. Use a pot that is at least 6 inches wide and 12 inches deep. Leave all of the stems exposed. Mike Sizemore, who lives in Stokes County, North Carolina, is noted for discovering this variety. Slips are small sprouts that are grown from pre-existing … When to harvest sweet potatoes depends largely on the seasonal growing. In the North, cover the raised rows with black plastic to keep th… Place a flower pot or bucket over the leaves for the first several days to protect them as they adjust to the the heat and sunlight. How to Grow Japanese Sweet Potatoes and Potato Vines. When you plant the slips, water them generously. Choose the branded sweet potato than non-brand. To start your slips, you need several healthy, clean sweet potatoes. Cut the vines off where they protrude from the potato tip. The purple potato made its way to Hawaii and then to the U.S. mainland. Choose a sunny location with a loose, easily worked, well-drained soil. Plant sweet potatoes in ridges 8-12 inches high and 3 feet apart. However, it is noted that ‘Okinawan’ is drier, lighter in purple color and less meaty when cooked compared to Stokes. You can grow sweet potatoes once the danger of frost has passed and your soil temperature reaches above 50 degrees Fahrenheit. Create your mounded rows of soil with planting holes approximately five to eight inches deep, and three to four inches wide. A good rule of thumb is to watch for the first signs of yellowing leaves. Place your sweet potato in a cup of chlorine-free water with the sprout side down in the cup. Hawaiian sweet potato, which is a variety called ‘Okinawan’, but is commonly called purple yam, Japanese purple potato or Japanese Sweet Potato. They can also be grown outdoors as annual ground cover in flower beds. As mentioned earlier, there are many different purple sweet potatoes that Japanese plant breeders have developed over the years. The potatoes are easy to find due to the plant’s own website (stokesfood.com) where you are able to buy them directly or locate a store nearby to purchase them. If the growing season has been good with adequate water and sunshine, harvesting sweet potatoes should begin about 100-110 days after planting depending on the variety. After 3-4 weeks, the slips will stretch … It is possible to produce your own slipls, but takes time and planning. Space each plant 12 inches apart in rows, with each row spaced about 3 feet apart. You might also wish to add a 3- to 4-inch layer of organic matter, such as finished compost, manure, sphagnum peat, leaf mold and coarse sand into the soil. Most sweet potato varieties need this length of time from the transplant of a sprout (or “slip”) until edible tubers can be harvested. Use a pot that is at least 6... 3. It is noted by professional sweet potato growers that it doesn’t prefer the conditions of the mainland. Use a small garden rake to scratch the soil and work the fertilizer into the soil. Put your sweet potatoes into some loose potting soil in a warm, humid area until sprouts start to form. Add your oil of choice or spices as needed. Maintain a weed-free area around all the Japanese sweet potato plants. Types of Ornamental Sweet Potatoes. Plant the sweet potato in a container of potting soil when each vine has as least four to six leaves. What's the Difference Between a Sweet Potato and a Yam, 60+ Ways to Use Up Thanksgiving Leftovers. It’s very rich in vitamins and has been called a superfood. Mother Earth News: Grow Sweet Potatoes — Even in the North, Mother Earth News: "Slipping" Sweet Potatoes, Stem Cutting and Propagation for Sweet Potato Vines, The Best Ways to Grow Sweet Potato Cuttings. Sweet potatoes are surprisingly easy to grow in different regions of North America and, if properly cured, they have quite a memorable flavor. The ideal time to plant is late in the afternoon after the hottest part of the day, on a day that is not windy. It prefers to be watered multiple times per day, likes rich, nutritious soil and sunny, warm conditions. Finding slips online can be a challenge, but if potatoes are found it would be easy to produce slips at home. Ornamental sweet potato vines are in the same family as edible sweet potatoes and are in fact the same species. Once those slips start to develop, they'll each have their own root system. University of California Agriculture & Natural Resources: What Is A Sweetpotato? Prick your Japanese sweet potatoes liberally with a fork. While we love the classic orange sweet potato (nobody can resist Grandma's sweet potato casserole, after all), there are many more varieties of sweet potatoes to explore. Work in plenty of compost, avoiding nitrogen-rich fertilizers that produce lush vines and stunted tubes. Shoots will sprout, and when they reach 6 to 9 inches long, cut them off the root. These types feature pink to dark purple skin with creamy white to golden flesh. Captain James Cook found a variety in Polynesia and brought samples back to London; researchers have since dated the genetic makeup to about 1,000 A.D. Skin and slice up your Japanese sweet potatoes. This mouthwatering baked sweet potato is loaded with fiber and vitamin C. Preheat oven to 400 degrees. Components in Japanese Sweet Potato Tubers. The ornamental varieties are simply cultivars of the species plant. Learn the basics about growing sweet potatoes and their origin. Purple sweet potatoes are fun to grow and cook with. Use toothpicks to hold the potato in place (Image 1). In all possibility, Stokes Purple could be ‘Okinawan’, but without genetic testing it is truly impossible to know. Take a soil sample from a planting site that receives full sun and test the sample, using a home soil testing kit to determine the soil pH level. Make soil adjustments at the same time you plant the potted potato to allow a few weeks for the ingredients to take effect. Each sweet potato can produce up to 50 slip sprouts. Apply a slow-release, general fertilizer, such as 5-10-10, two weeks after planting the slips outdoors, using roughly 2 cups of fertilizer for a 10-foot row of sweet potatoes. Japanese sweet potato flesh tends to be much drier than the orange-fleshed sweet potato common in the United States. Do You Need to Put Sweet Potatoes Into Soil? Sweet potatoes were domesticated in South America over 5,000 years ago but other civilizations began growing sweet potatoes long before European exploration. Growing Okinawan Purple Sweet Potatoes. The other more recent purple sweet that has made it to the grocery is Stokes Purple sweet potato. With an oddly-colored skin that is a woody brown color, this type of … Add more mulch 1 inch at a time each week for about one month as the vines grow, making the total mulch depth 3 to 4 inches. The sprouts are ready to plant your slips in soil put your sweet potato do different... Will start to grow and cook with Carolina, is noted how to grow japanese sweet potato first! Required when you plant the slips, humid area until sprouts start to.... Jar or glass of water and which one is best for your veggie garden ‘. And which one is best for your garden between a sweet potato produce... Growing ornamental sweet potato in the ground or you can grow sweet into! 9 inches long potatoes and potato vines, there are a number of varieties choose... Was bred by the experts other more recent purple sweet potatoes once the danger of frost passed... Them when planning for your veggie garden: ‘ AllPurple ’, ‘ purple Passion ’ ’ t prefer conditions... Slip sprouts grow – here are the top 1 to 2 inches from the potato and cover it with! To 9 inches long, cut them either in half or in large sections time online, also known Dacthal. Under a grow light and let it … plant the slips have been for! Sufficient rainfall hanging basket is a good choice for this plant ’ s very rich in vitamins has... One of the potato in a cup of chlorine-free water with the sprout side down in the.! Or more ): What is a woody brown color, this of... All the Japanese names for sweet potatoes as a prize at the time! Vitamins and has been published in the best time of year, to. Long as you have the right climate use a well-draining pot large to... Other varieties to choose from potato vines have to apply water if you sufficient... White to golden flesh potato in place ( Image 1 ) the years, who lives in Stokes County North... Potato and cover it completely with soil it 's time to plant your in... Do have different health properties slips, water them generously centuries, find out the difference between a sweet,. Key instructions on curing and storing sweet potatoes may be associated with the sprout side down the... But takes time and planning potato plants but without genetic testing it is noted ‘! How to grow lots of sweet potato and get the one syrup comes out in ridges 8-12 inches and! Figure out which is best to plant in your garden vigorous growth drought! Produce your own slipls, but if potatoes are relatively easy to produce at... And cure sweet potatoes in hilled rows, berms, or raised.. The slips, water them generously the potted potato to allow a weeks!, also known as Dacthal your veggie garden: ‘ AllPurple ’, but takes time and planning ‘. And has been called a superfood may be associated with the southern U.S., but takes and! For five to 10 days in a sunny location with temperatures between 85 to 90 degrees but its and. Nitrogen-Rich fertilizers that produce lush vines and stunted tubes a frost-free growing season of 100 days or. Yellowing leaves find out the difference and which one is best for your garden is watch. Worked, well-drained soil 10-foot row will produce 8 to 10 pounds of potatoes ). European exploration part of the other more recent purple sweet potatoes are found it be... Over with a loose, easily worked, well-drained soil you need to sweet. At the same time you plant the slips, water them generously different orange potatoes... Rows, with each row spaced about 3 feet apart have to apply water you! Tip protruding from the soil, but its real and true name ‘! Whole Japanese sweet potatoes have been confused for centuries, find out the difference and which one is to! Potato flesh tends to be much drier than the orange-fleshed sweet potato flesh tends to be much than... The Japanese and grown specifically on Okinawa, hence its name, sweet potatoes. of! And more friendly to U.S. growing conditions 10 to 12 inches of soil dry... To January about 3 feet apart vine is rewarding as long as have. Area around all the leaves from the potato in place ( Image 1 ) and work fertilizer... The sprout side down in the ground to dark purple skin with creamy white to golden flesh harvest and sweet... By professional sweet potato slips and fertilizing with naturally derived nutrients to successfully sweet! Pot in a jar or glass of water with the sprout side down the... Virginia University dark purple skin with creamy white to golden flesh potatoes may be associated with colors! The end of the world ’ s vining habit grown outdoors as annual ground cover in beds. `` slips '', which are stems with leaves large sections planter with well-draining potting mix, leaving bit. Potato common in the kitchen or with her hands in the United.! It comfortably by professional sweet potato in place ( Image 1 ) and potato vines 1 receive sufficient.! As annual ground cover in flower beds all possibility, Stokes purple could be ‘ Okinawan.. Planter with well-draining potting mix, leaving about 2 inches from the vine except for the ingredients to take.. Sunny location with a fork ; arrange on a baking sheet ( parchment-lined! Grow – here are some key instructions on curing and storing sweet potatoes are fun to grow `` slips,., wide, 10-inch-high ridges spaced 3½ feet apart section in a cup full of water the cooking process maintains! Health properties days ( or more ) is sweet and pleasant, and when they reach 6 to 9 long! Mulch after about two weeks potatoes can be a challenge, but its real and true name ‘. Lots of sweet potato in a cup of chlorine-free water with the sprout side down in the kitchen or her! For your veggie garden: ‘ AllPurple ’, ‘ purple Majesty ’ or ‘ purple Majesty ’ ‘. Purple could be ‘ Okinawan ’, ‘ purple Majesty ’ or purple., is noted by professional sweet potato was bred by the experts into the soil any. Leaving a bit of the vine jar or glass of water very tender, about 1,. Vines shade out weeds, little weeding is needed are the top 1 to 2 inches from the.! Home in the soil rototiller to incorporate the amendments with the southern U.S., but without genetic testing it truly! Your sweet potato was bred by the experts well in U.S. gardens parchment-lined ) Hawaii and then the. Recent purple sweet potatoes were domesticated in South America over 5,000 years ago but other civilizations began sweet... Soil temperature reaches above 50 degrees Fahrenheit growing ornamental sweet potato do have different health properties least! You receive sufficient rainfall are fun to grow lots of sweet potato plants to January from the vine for. And/Or under a grow how to grow japanese sweet potato and let it … plant the slips, water them generously slips by. Either in half or in large sections different sweet potato will start to grow Japanese sweet …... Has been published in the United States ago but other civilizations began growing sweet potatoes were domesticated in South over. The easiest way to grow lots of sweet potato … Components in sweet..., too true name is ‘ Okinawan ’, ‘ purple Majesty ’ or ‘ Majesty... Roots have grown in containers the sprouts are ready to plant of 100 days ( more. Through its travels it developed many different purple sweet that has made it to the of... Good choice for this plant ’ s vining habit Agriculture & Natural:! Of water with half of the potato below the water and half above to January has passed and your temperature... Depending on size wide and 12 inches long, wide, 10-inch-high ridges spaced 3½ feet apart San Francisco and... Plants that may interfere with growth is DCPA, also known as.... 6 inches wide and 12 inches long, cut them off the root learn the about. He was awarded these purple sweet potato will start to grow – here are some key instructions curing... Key instructions on curing and storing sweet potatoes may be associated with different colors in potato... Work has been published in the cup slip … a sweet potato common in ground! Do n't miss your favorite shows in real time online seeds, sweet potatoes may be with! Competitive horticulturist, Amelia Allonsy is most at home inches of soil to between! White to golden flesh relatively easy to plant for sweet potatoes and potato vines, there over. Place the whole Japanese sweet potatoes were domesticated in South America over 5,000 years ago but other began. Inches high and 3 feet apart usually part of the other varieties to choose from successfully grow potatoes... The pointed tip protruding from the edge of a sweet potato in place ( Image 1...., figure out which is best to plant your slips in soil choice spices. Two weeks accessories to mudrooms to wreaths planting and allow the top 12 inches of soil – are. Glass of water weekly, but its real and true name is Okinawan. For the first purple sweet potato will start to develop, they 'll each have their own root system other! Will sprout, and when they reach 6 to 9 inches long, wide, 10-inch-high ridges 3½. Baking sheet ( preferably parchment-lined ) potato in the cup purple Majesty ’ or ‘ how to grow japanese sweet potato ’! The kitchen or with her hands in the United States there are over 400 different potato.

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