I am significantly further south than you, so can only speak to my experience growing it in southcentral OK.

Rhubarb is very weather-sensitive. I have planted it many times. In the best of times, it will survive two or three years for me before either an exceptionally wet or exceptionally dry year kills it, or before an exceptional cold spell or exceptional hot spell kills it.

I have had the best success with it when growing it in large containers (roughly the size of whiskey half-barrel planters) that sit at the west end of my garden during the growing season. The plants are in a very well-draining soil-less mix and get fed and watered regularly. They get sun in the summer time until about noon, and are in shade the rest of the day. In the late autumn, I move them to the unheated greenhouse where they sit in a dormant state. In the spring, after new growth emerges, I move them back to their shady spot at the west end of the garden. The plants in containers generally survive longer than any I've ever grown in the ground. Do we ever get a really great harvest? Maybe one year out of ten. Most of the time, we get a measley harvest. I'd rather just go to a store like Whole Foods or Central Market and buy good rhubarb when they have it is season (it is not in season for long).

I don't even like rhubarb, but I married a Yankee who grew up eating it and who loves it, so I grow it for him. Is the piddly amount of rhubarb we manage to harvest worth all the time and effort that goes into growing it? Probably not, but I love my DH so I keep trying to grow it for him.

Rhubarb doesn't like our weather, especially our heat, and it doesn't handle drought well at all. There's plenty of days I have to water it even when nothing else needs to be watered in the spring, summer and autumn months. It also doesn't like the way that rain here often comes in a deluge and keeps its roots too wet for too long. It doesn't like the way our weather erratically changes from hot to cold then back to hot then back to cold and then back to hot again in the winter months. It needs more consistency than our weather gives it most years.

You're further north and east than I am, but I don't really think your weather is substantially that different from mine. You likely have the benefit of having better-drained soil than I have, but I still think that most likely you'll find it challenging to grow rhubarb in our climate.

I started to plant into a pot this year and it had a rhubarb plant growing in it. Since it had been many years since I had grown rhubarb, that root had to have survive a long time. Before I discovered that plant I had already placed any order for3 more roots. I carefully planted all of them in protected places and they grew like gangbusters. I could have had a large harvest but didn't because I was hoping to let it get strong this year and maybe it would last for future years. I should have harvested because that heavy, heavy rain that we got seemed to be more than two of the plants could take. It was when I had that sinus and ear infection and didn't take care of anything for about a week. One plant that was in a raised bed in a mostly shady spot made it through the rainfall, but the heat got it. I can see how containers would be the best way to grow rhubard in Oklahoma, but I think it will still take a lot of care, especially water and shade.

Oh, and I should have said that I am in the NE corner of the State, so a lot further north than Dawn.

I am so glad someone posted about rhubarb. I actually bought some roots that were on sale at Tractor Supply awhile back. Sadly they are still sitting in my garage in the "garden corner" because there was just too much going on that I didn't get them planted earlier. I may go ahead and plant them since the weather "seems" to have decided to cool down somewhat. I'll be going to home depot tomorrow so I'll probably look for a container that I can roll in and out of the garage for winter storage. Or......I might just plant and then cover well with mulch. If it lives, then great..if not, then it's ok too. My DH loves rhubarb in his smoothies. I haven't really tried rhubarb pie or any other recipe but I am wanting to try strawberry rhubarb pie. I usually just get a few bags of frozen rhubarb but would like to get an adequate harvest.

Where do you even find frozen rhubarb? I checked online and was told you couldn't buy it frozen within 25 miles of Broken Arrow, OK.