Tuesday, March 19, 2013

Sweet Potatoes

A couple of us had more thoughts on potatoes and someone wanted to know the difference of potatoes and sweet potatoes so I found this article in another blog about Sweet potatoes. You may not know this, but sweet potatoes and potato potatoes are nothing alike. Sure, they are both tasty treats that grow underground. But, that’s where the similarities end. Sweet potatoes are related to morning glories, which explains their cheerful purple flowers and their rambling vines. But, those trusty Irish spuds? They belong to the tomato family, and are cousins to peppers, tomatillos and eggplants — the nightshades. Sweet potatoes like the heat. They need the heat. Potato potatoes? Well, they thrived in Ireland (until they didn’t). Heat is not something they really appreciate. Cool and moist suits them just fine. This is why we plant our spuds in the early spring, and wait until the real heat sets in to introduce the sweets to the garden. To make new sweet potatoes, we start with an old sweet potato. An organic sweet potato (the non-organic sweet potatoes may be treated with sprout-suppressing chemicals). Ideally, you’ll start with a locally-grown organic sweet potato, because then you’ll know that variety will thrive in your region. But, don’t sweat this step too much. A sweet potato from the grocery store should also work just fine. Just, really, buy an organic one. Ok. So, you’ve got your organic sweet potato. Great. Now, we’re going to cut it up. Just slice it in half, across the middle. Next, place each section of sweet potato into a container with water. Plenty of people use toothpicks to suspend their sweet potato halves in a glass of water, but I think it’s easier to just set the whole thing into a casserole dish. Use enough water so that about an inch or two of the potato is submerged. Set the container near a window, and you’re done. Over the next few weeks, the sweet potatoes will send out little baby plants. Your only responsibility during this time is to keep that water level fairly constant. The sweet potatoes will take care of everything else. After four to six weeks, you should have a nice growth of little baby sweet potato plants. These will become your slips. With any luck, some of your sweet potato sprouts will already have roots. Excellent. These little plants-to-be are ready for planting. Others won’t have any roots at all. No worries, those laggards will catch up real fast. Remove the sprouts by snapping them off at the point where they emerge from the sweet potato tuber. Congratulations! You have your first sweet potato slip! Once you’ve got all your sweet potato slips in their pots, all you need to do is keep them happily watered until it’s warm enough for them to move outdoors. I like to keep mine in a big styrofoam box. Easy to water. Easy to transport outside for some sunlight during the day. And, easy to bring inside again before the evening chill. No styros? Well, anything that holds water should do fine. A casserole dish. A plastic storage tub. A big pot. It’s just easier if it holds water and holds a bunch of seedlings, because you could be doing a daily shuffle from inside to outside to inside again for a while now. Whatever you keep them in, it’s best to coddle your sweet potato seedlings until two or three weeks after your last frost date. Then, once the nights are reliably above 50°F, you can plant them out into the garden. Most people grow their sweets in the ground. I prefer containers, because it makes the harvest easier. Last year, I tried bushel baskets with great success. This year, I’m building a big potato planter. And, yes, I’ll be doing bushel baskets too. A gardener can never have too many sweet potatoes.

3 comments:

Pack-rat said...

Mike, thanks so much for this information. I can't wait to try growing these. I really love that there is yet one more use for my favorite garden tool, the toothpick, lol!

The Sassy Butterfly's Chaotic Musings said...

Just curious if you will be doing any potato growing demos this year at the garden? When's the best time to start the sweet potatoes? The place I was going to order organic from isn't shipping til May..

Thanks!!

Unknown said...

You can now start planting sweet potatoes if you can find the plants. I asked around and the plants won't be on the shelves until mid June.
I planted my red potatoes back in mid march and got hit with frost and the plants took a long time to recover. I planted in my bed (#51) in mid April and having great success.