It’s easy to grow a sweet potato vine indoors in the same way you would grow an Irish potato in water, Place toothpicks into the sides of the sweet potato, put in a container of water and place in a sunny window. When your sweet potatoes are ready to harvest, you simply lift the bag and dump the contents into a wheelbarrow making the harvest extremely easy. You’ll want to leave them in the pots as long as possible for maximum size. A few other things are worth mentioning. First, the sweet potato foliage will spread far beyond the container. The beauty of growing potatoes in containers though is that you can harvest tem exactly when you need them and pop them straight into boiling water for the tastiest New Potatoes ever. Storing sweet potatoes. Sweet potatoes can be used soon after harvesting, but they will store well for several months if the skins are cured properly. You can also use other containers such as whiskey barrels or clay containers; just make sure they are wide and deep with adequate aeration and drainage. I have no garden space for them. You can use this for amazing landscaping effect – sweet potatoes vines and flowers are beautiful (and the leaves are edible!). 15 years ago. sweet potatoes in containers. Second earlies can be harvested when quite young, following flowering, or left to grow on all summer long to produce larger potatoes for storing. Once the vines and leaves begin to yellow with the approach of cooler weather, it’s time to harvest. You can’t harvest tubers in this manner, however. If you have a shorter growing season, your potatoes may be smaller in size, but will still have the same wonderful taste as larger spuds. Here’s what the tubs look like when the sweet potatoes are growing. Follow. Lay them out in the sun for a few hours immediately after harvesting and then move them to a warm, humid place for 10 days - a greenhouse is ideal. Most sweet potatoes need about 100 to 120 days to develop tubers. Comments (29) Ina Plassa_travis. This means you need to plan ahead and start your sweet potato slips about two months before you intend to plant them in the garden. wantobe. However, it is important to harvest your sweet potatoes prior to any frost or freeze. Fill the container so the potting mix covers the bottom half of the sweet potato. A few days ago they arrived. Hello , I ordered sweet potatoe plants the first of the year,and forgot about it. The same applies to maincrop potatoes. Email Save Comment 29. Please can anyone give me pointers on container,soil, etc. It's up to you to balance the taste against the size of the potato. 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