I never did find any website with heights for all varieties of blueberries. If you do some searching online, you will eventually come up with size estimates for the different varieties.

Or, you could name the variety that you are considering and maybe someone grows it and can tell you how tall it is at their place.

About Finch Nursery, my experience with them is that the earlier in the season they ship, the better the condition of the bushes. Last year I got some in the spring, and some were brown and dead when I opened the box.
Benny

That's great to know about Finch nursery. Thanks for sharing.
I guess I'll do all my planting this Fall. It's close enough to me however, that I'll be going there in person and dang sure won't be bringing home any brown plants.

The varieties I am considering are

Climax
Tiftblue
Blue Ridge
Oneal
Powderblue
Southland, which is listed as compact

Someone on this forum has to be growing these that can tell me how big they are after about 5 years. Please share!

Thomis

Blueberry plants should be spaced 4 feet apart and the rows should be 6 feet apart. I don't allow my bushes to go wild I trim them because I have to cover them with a net. The Birds love my Blueberry.One brave very little red Bird made a nest in one bush. I did not cover it and I got no Fruit out of that Bush. I will cover early to avoid the nest building.

Ripening times for me at 2000' elevation in the mountains of east Tn. Oneal is first, early June, then Climax late June or early July, Tifblue and Powderblue are next and can go to early Sept. The above order can change, depending on the weather in the Spring. My latest ripener that you did not mention is Onslow. Finch says that Powderblue is latest for him, but it has never been in my climate.
My rows are 12' apart, wish they were wider so my pickup could deliver mulch between the rows without scratching the sides.
Oneal are planted 3' apart, they are slow growing upright. Others are spaced 6' apart. In my rocky soil, Oneal is about 3-4' after 5 years, others are about 6'tall.
Benny