Bit of a niche bargain this one. Went to B&Q yesterday to get a few more aquatic plants for the pond, chose 3 and they scanned at £1 each instead of the labelled £6.50. Went back today and grabbed a few more just for the other contents, still £1 each.
Each box contains:
1-3 plant roots (depending on plant chosen)
Bag of aquatic compost
Bag of gravel
15cm planting basket
This was from the Stafford store, they had quite a few varieties from marginal iris and rushes to deep planted lillies. Some roots looked a bit past it, especially the bog iris, but the lillies are in great shape. Labelled as Verve but also says 'Brought to you by B&Q' so guessing their own brand.
I know this is very unlikely to get heat as you'd need a pond before it was worthwhile, but hopefully it helps someone :)