Marabel potatoes. What do you think?

They have been in longer than any of my other potatoes, and are starting to die back but have not flowered at all! They were healthy and huge before.
Anyone got any experience with marabel? I grew them from the nicebig ones from asda.

 

Yeah man they are in a large sized potato bag, and yeah I water them quite regularly. never grown these ones before but yeah, they been in for a few months I'd say.

 

Does anyone know if whether or not the potato plants feed themselves back into the tubers as they die or do they Just die off without doing so? I know that plants can draw the nutrients back out of leaves as they die, hence why I ask.

 

Thats not what I mean, I mean to ask if the foliage will die back into feeding the new tubers?

 

From the photo's they do not look like they are dieing off, but you will know better. Potatoes can often get battered about before final harvest, often falling over, losing leaves etc etc.

Marabel are a main crop potato which means approx. 16-20 weeks to maturity so that means from an early April sowing, harvest should be between end July to end August, this is just a guide of course and other factors contribute such as flowering, dieing back of foliage or even "testing" of a plant by having a furtle around in the soil to see how big the tubers are, if they not ready push the soil back and leave a bit longer, feed and water.

Steve...