Self watering pots are usually pretty shallow. I'm not sure they're appropriate for a blueberry bush. I have by and large stopped using them in favor of regular pots, mulching at the top, and drip irrigating.

I'm no blueberry expert, but I have a hard time imagining keeping one in a container smaller than the bottom half of a 35 gallon garbage can, and I'm not sure that'd actually be big enough.

I'm no blueberry expert, but I have a hard time imagining keeping one in a container smaller than the bottom half of a 35 gallon garbage can

Well maybe you're no expert, but that's good advice. A wide mouth is needed. It doesn't have to be super deep. I use 18 inch diameter pots, or 30 gallon fabric bags.
Blueberries can get to be 6 feet tall or more. The bush form I think Suzy has doesn't get that big, still a 30 gallon bag is the minimum, if you want the best possible production.
In 2 years I have to use a dolly to move the plant, they grow really well if conditions are good.

Well there you go. The bottom half of a 35 gallon garbage can would really only be about 15 gallons - so half the size you're recommending.

I didn't think that would be big enough - but I didn't think it'd be THAT far off, LOL!

15 gallons would be OK, but I think bigger is better. I currently have a few in 5 gallon, but only for the first year. These are now a year old, and will be transferred to 30 gallon size pots or bags. The one on the right is Cara's Choice and is a smaller cultivar like Sunshine Blue.
{{gwi:31769}}

This post was edited by Drew51 on Wed, Oct 29, 14 at 8:07