Miracle-Gro Potato & Vegetable Gro-Sac ??

[marialittlebzz]

I am about to buy these Miracle-Gro Potato & Vegetable Gro-Sac 5 Plant | CPL Creative Garden Ideas
but I just wanted to check if anyone as tried that product before ??
It doesn't say how many liters for each bags, only "5 plants"... not sure about 5 potato plants in one bag...

What do you guys think ? any one familiar with this kind of grow bag ?
( it's my first time growing potato... )

Thanks !!

[Hazel at the Hill]

Personally I'd buy a normal back of New Horizon Organic Compost (they do have a vegetable specific one) and chop the top off and use that. It's £3.99 (I think) at Wyevale for a 60l bag.

Oh, and I'd probably only plant 3 potatoes in it.