Yes, I didn't get around to sowing seeds this year so I bought plants from the garden centre. The label gives no variety, so I did wonder until the cobs grew a bit more whether I'd picked out mislabelled mini sweetcorn which were also on sale. I suspect it was the weather, unless there's a variety that has been bred to stay small.
Still, a better result than I had last year when the plants grew beautifully to full size but the cobs never set and ripened properly.