I'm not sure if I didn't feed them enough or if they got too much water. The actual leaf growth was tall probably 1.3m so it could be there was too much or the wrong kind of fertiliser. I mixed multipurpose compost with well rotted manure 50/50.
Yes Urszula that does sound like they made a lot of foliage at the expense of potatoes. I do a bit of a mixture, garden soil and manure to start them off and usually cover the growth with compost every time it pokes through until it gets to the top of the tub. I like Rocket as an early variety, maybe what you grew does make a lot of top growth. Worth persevering, new potatoes are so delicious @ublaszko