I have a volunteer sunflower. When digging it up for the winter, I discovered rhizomes instead of roots. Does this mean that it is an edible sunflower and the rhizomes are sunchokes or Jerusalem artichokes?
Most likely, yes. I would be careful though. While sunchokes are tasty, they can become invasive quickly. 1 tuber can produce up to 20lbs of additional tubers in a season. So they can quickly take over an area.
How can I clean the earth and what is the pest?
This article contains suggests a possibility: https://www.gardeningknowhow.com/plant-problems/pests/root-eating-insects-identifying-vegetable-root-maggots-and-root-maggot-control.htm
The best way to get an identification and specific treatment is to take a sample to the local Extension Service. This will help you locate one: https://www.gardeningknowhow.com/extension-search/
Jerusalem artichokes leaves brown with white patches and no flowers yet. I have 12 Jerusalem artichokes that are now about 4 feet tall. One has slowly had its leaves turn sickly dark brown, and one has white on the back. Now the plant next to it has a leaf turning the same. Could it be due to overwatering, or some pest or disease? This is my first year to plant them. They are in a new bed with mostly amendment, hardly any regular soil. I live in zone 8 in Safford, AZ. I have been watering them every day.
You are looking for evenly moist soil. You need to check the soil before watering to see if it needs to be watered.
Inspect the leaves for any signs of insects. Neem Oil is a good treatment if you find anything.
Here are a couple of links.
I have some really big bulbs. I think they need to be cut , there were 5 to a pound. After cutting, do I need to let the cut sides heal over, or can they just go in the ground. How long to heal?x
I don't think I would recommend cutting them this season. You will need to ensure that each segment and a shoot eye, and root nodules. This can be done after the season is over. This way you can see root sites and shoot sites very clearly. I would wait to plant them after they have healed some as well. This can take a few days or a week or so even. This will help prevent any rot from happening. This article will give you more information on growing these: https://www.gardeningknowhow.com/edible/vegetables/jerusalem-artichokes/growing-jerusalem-artichokes.htm
HI, You know how the following spring Jerusalem artichokes send up all those cute baby shoots even after you've dug out what you thought were all the tubers? Do you know if you can transplant the new shoot to get a new plant or does it have to be the tuber? Thanks for your time and help, Billie
You could try to move the shoot, but in all likely cases a tuber is attached to the shoot all ready
I am in zone 5. Won't be able to plant outside until early April since ground will be frozen before that.
You can keep the tubers in peat moss or potting soil in a box in a cold, dark place such as a garage or basement till planting time. Keep them from freezing. Here is how to grow them: