I know this is a strange query and I understand a difficult one to answer but I am just looking for suggestions and/ideas to help me decide what to do.
Last week I emptied and cleaned the greenhouse and found a bag of white powder in there next to a bag of vermiculite (only moved in in April and was a lot of stuff left behind). Now I am wondering what it might be.
It is a sealed 3kg clear bag of whitish powder, looks a bit like sand and feels (through the bag) a bit gritty, fine grit though. It is obviously new but the label has been washed off, tiny bit of red and yellow left of it and the word 'three' is all that can be read of it.
I know the previous owners were very keen gardeners and grew a lot of their own plants from seeds.
The soil here is acid and I wondered if it might be a bag of lime but then I thought 3kg is very small.
Any ideas gratefully received or should I just throw it away?