A couple of years ago I grew 3 Rhubarb plants from seed, 2 of them lasted about 6 months in the ground and perished. the remaining one grew on through 2021 and into 2022, it had 3 shoots that looked good and strong, but then it seemed to go all floppy and limp, I watered it and used a little liquid feed, but it didn't respond, it's still in the ground so I will see what happens come spring. 3 weeks ago I was at a garden centre and they were selling off young Rhubarb plants for 2.99 so I bought one in it's pot 100 mm square and 150 mm deep, I put it on my back doorstep, it didn't require watering due to it having been soaked at the Garden Centre. when the frost came it went all floppy like the others. Can anyone help, I always thought Rhubarb was a plant/fruit that was mad easy to grow.