Is it ok to over-winter potted blueberry plants in a windowless garage or do they need some light? Thanks
Since it will be dormant, the light isn't necessary. Here is another option:
https://www.gardeningknowhow.com/edible/fruits/blueberries/grow-blueberries-in-pots.htm
https://www.gardeningknowhow.com/edible/fruits/blueberries/care-of-blueberries-in-winter.htm
all the leaves on my emerald blueberry bush have these rust like marks. they were in neutral PH soil until recently when I put it in a container with a 50/50 mix of peat moss and potting mix.
Blueberries are sensitive to soil type. This can be easily corrected, though. Make sure you use a fertilizer specifically designed for blueberries. This will keep the soil conditioned to the requirements needed. If the soil remains too alkaline, then iron sulfate may be needed to bring the pH down more.
Blueberries will not do well in neutral to alkaline soil, so this will just take some time to recover and start to grow normally again.
https://www.gardeningknowhow.com/edible/fruits/blueberries/growing-blueberry.htm
https://www.gardeningknowhow.com/edible/fruits/blueberries/blueberry-plant-pruning.htm
I'm curious about plastic garbage cans. They are nice and big and I can put holes to drain them. They are some form of plastic. Is this a good idea? I had just built some retaining walls with railroad ties and found that planting in there is not a good idea. I would dig the garbage cans into the ground but they would have holes at the bottom that the roots can get out and they would be near the railroad ties or I could keep them out of the ground. What do you think?
Most of the plastics that are common, now, are PET or other materials that are considered safe (non-leaching).
As long as you use soil, and fertilizers that are meant for blueberries, I would say that you will be best growing them in the cans. You will still need drainage holes to allow any extra water to leave the container.
Here is an article that will help you to grow blueberries in container:
https://www.gardeningknowhow.com/edible/fruits/blueberries/grow-blueberries-in-pots.htm
Hi I'm Kourosh. I have problem with my new blueberry bush. Last November, I planted BB seeds in a pot and they germinated. Because of 20% air humidity off my region I used plastic bag to help it grow. I'm using Humic Acid(Humax) fertilizer 1cc per liter monthly for the root, plus micro element fertilizer every two weeks for leaves by spraying it. I also spray Captan anti fungus monthly. Because of weakness of new plant, I use the combination of fluorescent and a mild indirect sunlight for growing it. (Using a 18w led grow light from 30cm above, made the leaves' color turn to red so I stopped using it). Now the problem is that yellow spots are appearing on the small leaves of the older branch. It has two branches now. I don't know what to do. It's the only BB I have and if failed, I have to start over. Please take a look at pictures.
First thing, I think it is in too large a pot for such as small bush. That causes too much moisture and root rot. Plus, blueberries don't need all the additives you are giving it. I would replant in a pot that is just one size larger than the rootball. Also, make sure your soil is acidic. Then stop all the feeding.
Here is more care for your blueberry bush:
https://www.gardeningknowhow.com/edible/fruits/blueberries/growing-blueberry.htm
I currently live in a zone 6 climate and purchased two blueberry plants last year that are in containers (Reka and Bluecrop northern highbush varieties). I will be temporarily moving to a warmer climate (zone 14) for 1-2 years before I move to a zone 4. I would like to bring my blueberry bushes with me, but I am concerned about them surviving the warmer climate. Do you have any advice as to how I can care for them during these moves? Is it even possible for them to survive and produce through all these transitions? Thank you
Northern highbush won't do well in that hot climate. A Southern highbush or rabbiteye would be better. If you want to try, here are instructions for the northern highbush but I think I would find them a new home.
I need to repot my two blueberry bushes into new containers as their current containers are falling apart, what is the best time of year to do this? One hasn't fruited this year, the other only a few fruits.
Repot when your bush is dormant (When all the leaves have fallen.) These articles should help:
https://www.gardeningknowhow.com/houseplants/hpgen/repotting-a-large-plant.htm
https://www.gardeningknowhow.com/edible/fruits/blueberries/transplanting-blueberry-bushes.htm