Hello Anne!
This post hasnāt gotten much attention recently but Iām happy to answer any questions you have if I can. And anyone reading this please feel free to leave your questions and I will do my best to answer them!
I donāt know the answer for sure about blue potatoes but my guess is that there are varieties of blue potatoes that store well and ones that donāt. Since the ones from the store had been washed and processed that could have reduced their storage potential. The ones your growing may store better if theyāre not washed till you need to use them and you store them well. I would watch them after you harvest them to see how they do. If you notice them starting to sprout or otherwise not store well then at least you will catch it early and hopefully still be able to use them.
Droughts are a challenge. As I write this Iām giving my garden a very deep watering. I try to only do this once or twice a month and ideally even less. Iām mentioning this because it sounds like youāre doing everything right in regards to reducing how much water your garden needs. But it also takes time for your soil to improve. If you keep your garden well mulched overtime the soil will improve which will also mean it can hold more water.
So next year will be better than this year and the year after even better. But it does take time and sometimes you will need to water until the soil improves. Iām not sure of your exact conditions but there are some other things you can do to help reduce how much water your garden needs. Here are some blog posts I wrote on this topic. The suggestions arenāt magic bullets but they should helpāespecially if you use them together.
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19 Ways to Deal with Drought on the Homestead
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5 Ways to Transform Your Garden into a Low Water Garden
Good King Henry is a challenge and Iām just starting to learn how to grow it from seed. This year I sowed seeds in 2 spots and in 1 spot I had no germination. In the other I had given up and covered the area with some wood chips but then a few weeks later I had a bunch germinate and theyāre actually slowly growing. So I donāt know why these ended up germinatingāI gave up on them, stopped watering and covered the area in mulch and yet somehow those were the ones that germinated⦠so I guess they thrive on neglect?
Iām afraid I really donāt have an answer to you for that one. Iām hoping mine continue to do well so I can get more seeds and Iām going to try growing them again. If I get mine to germinate I will post on permies with what worked. One thing I want to try is sowing them in the fall and letting the winter weather help get them ready to germinate. I would love to have them in my food forest so hopefully that will help.
As far as perennial vegetables for zone 5⦠sunchokes should be hardy in zone 5 and theyāre really easy to get going. Just stick the tubers in the ground and they should thrive. If you do plant them just make sure you put them somewhere youāre okay with them staying. Itās hard to get rid of them if you change your mind.
There are a lot of options out there though for perennial veggies. Iāve been focusing on some native ones to my area but here are some blog posts that could help you. The plants in the posts arenāt all hardy down to zone 5 but a lot of them are.
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11 Perennial Greens You Will Love to Grow
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11 Perennial Root Vegetables for Your Garden
Those posts donāt cover which ones are easy to propagate but at least it will give you some options to consider.
Also, next week Iām coming out with a new blog post that will list cold hardy perennial vegetables. There will be a lot of overlap with the above posts.
Good luck!