Cheapest grit

danlightbulb · Monday at 18:51

Horticultural potting grit or similar.

It's £6 for 20kg at B&Q.

B&M have bags for £3.99 but it doesn't say the weight.

Anyone know if these are similarly 20kg bags?

200sols · Monday at 20:38

Sharp sand.

danlightbulb · Monday at 22:13

200sols said:
Sharp sand.

No good for my heavy clay soil, will make it like concrete. Not recommended for pots either.

Just want to know best value for money potting grit.

Richie · Tuesday at 11:00

I just buy bags of perlite or vermiculite as it has better properties than grit, especially for potted items.

danlightbulb · Tuesday at 12:25

Richie said:
I just buy bags of perlite or vermiculite as it has better properties than grit, especially for potted items.

Yeah more expensive in larger quantities though.

Richie · Tuesday at 14:50

danlightbulb said:
Yeah more expensive in larger quantities though.

True. Have to weight up the pros/cons of each and over the longer term "maintenance" including watering etc (vermiculite retains water like a sponge and then releases it slowly back into the soil)

danlightbulb · Tuesday at 15:13

All I'm doing is a large patio bed, about 1 cubic meter volume in total.

Have the topsoil (bulk bag), have the compost (£5 per 50 litre bag) and now need a large volume of grit as I'm planting Mediterranean style plants in it so can't be too rich or soggy.

B&Q is £6 per 20kg, B&M is £3.99 but the bags don't specify the weight.

I'm mixing in at least 5 bags of grit.

Just looking for best value for money per kg.

Armageus · Tuesday at 15:27

danlightbulb said:
B&Q is £6 per 20kg, B&M is £3.99 but the bags don't specify the weight.

You could always contact the supplier - presumably it's this https://kelkay.com/product/horticultural-potting-grit/

Google AI Seems to think 4kg though

Richie · Tuesday at 19:24

Not much info but the few sites I can see all indicate that the Kelkay Potting Grit in Handy Pack size is 4kg