Apologies I saw your post only after I posted mine. I am in the same zone as you. See my post Why I Love Gardening - New Potatoes. I harvested some baby (new) potatoes yesterday and had them for breakfast this morning. Mine potatoes were planted mid March.

We have grown potatoes for many years. Some years you get those little tomato like seed pods and other years you don't. One year we took the pods off and took out the seeds from them and dried them. The next year we planted them in the ground in my cold frame. It had no bottom and good soil because I often planted late salad crops in it to prolong the growing season. Anyway they sprouted and grew making small potato plants that summer. When we dug them in the fall there were these small seed potatoes, which we kept and grew the next year with success.

Posyplanter, Well, I am referring more in general to the type of soil but if you find a particular spot where they're happy, I think you could grow them there every year. In general, sweet potatoes are very disease-resistant and very few pests bother them in a home garden. So, I grow mine in one of two places (or, sometimes, in both those places) every year and don't really engage in crop rotation since there's little worry that either pests or diseases would build up in the soil. I add compost to the beds every fall/winter to put nutrition back into the soil, but since they're sweet potato beds and rich soil isn't needed/desirable for them, not too much compost....about an inch of compost goes into the sandy soil beds annually. In my case, I really couldn't rotate anyway. We have very thick and dense, brick-red clay that, even when well-amended, is too heavy for sweet potatoes. There is one narrow vein of sandy soil about 30' feet wide that cuts from north to south across our property and runs maybe 60'. Most of that area has trees in it, but I have carved out two small beds between those trees and my main vegetable garden and those beds are reserved for sweet potatoes. To rotate them, I'd have to move them to a raised bed of heavy, improved clay and I'd rather leave them in the sandy soil. I suppose if I ever have problems in the sandy soil, I'll have to either move them to clay the next growing season or skip growing them for a year. By the way, I have been in touch with my sweet potato slip provider this weekend and he tells me it has been a very bad year nationwide for planting sweet potatoes. Remember how wet last year was? Well, lots of commercial growers harvested the sweet potatoes just fine, but the potatoes held over to use as propagation stock for this year must have had either too high of a water content or were harboring some disease (commercial growers, because of monocropping, often see disease issues we home gardeners don't see). When the sweet potato slips were planted this spring, which also was abnormally wet in the sweet potato growing areas, many died and now sweet potato slips apparently are in short supply this year. That really makes me appreciate one of our local growers here in Oklahoma (Duck Creek Farms) even more because Gary did have sweet potato slips for sale this year so at least some of us were able to obtain some before we even knew they were in short supply nationwide. Sweet potatoes only store for maybe 2 to 3 months even in ideal conditions, so it is very difficult and a very complicated process for growers to keep sweet potato propagation stock alive from one fall to the following spring. Since our local grower is one of a small number of people seeking to bring back many heirloom varieties to the market here in the USA, it is especially important that he not lose his propagation stock. Sometimes, I think we home gardeners have it so easy...we buy stuff, plant it, grow it and harvest it and never realize the very hard work that is involved just in having something as 'simple' as sweet potato slips available for us to purchase. Seeing the struggles the commercial growers have gone through this spring with their sweet potato slips has given me a whole new appreciation for the fact that home gardeners like us can just buy slips and plant them. If we have to or want to, we can grow our own slips, but it is unlikely I'd be able to keep 20 heirloom varieties going over the winter every year without a greenhouse or something else. Dawn

Sharon, I look forward to receiving my block! No, Linda and I didn't make the sacks. I'm disappointed about that not working out. I've cut out my block but haven't sewn it yet. My daughter committed a knitted blanket to a camp for disabled kids and it has to be there by Monday. She didn't make enough squares, so she is busy knitting like crazy and I am connecting the blocks for her. So if I am not doing that, I have been in the garden! I feel like I have had such a long summer already, instead of feeling like the summer has flown by. That will probably come later. Dan, good for you. I go crazy when the piles start building up, whether it's fabric, papers or stained glass. So I spent a lot of time this last week also folding all my fabric. I'll post a picture later. I don't have a lot of fabric, but it's all organized now and I can find in an instant what I am looking for. Love it. Got to work at the Master Gardeners garden walk today, make food for another daughters dinner party tonight and maybe find time to clean house today...the last think on my list each day which I never seem to get to in the sumnmer. LOL