Depends what you want them for. Clay soil needs lots of organic matter to make it more suitable for a wide variety of plants. That's easily the best way of improving it. Adding rotted manure and home grown compost, leaf mould etc, to existing soil, or bought in topsoil, will create a good medium for lots of plants.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Soil conditioner is a term used for organic matter, but it can also be purchased as an additive in bags. I've never used that, so I don't know exactly what's in it. I expect you'd need to add it to other material though. My raised beds all have old turf at the bottom, then a mix of soil, compost and well rotted manure, which works well for most plants and climbers. The beds vary in height from about 6 inches to a couple of feet. The soil here was just compacted sticky clay under paving, and a lot of builder's rubble, so it would have been impossible to create a good depth otherwise.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
claravalekath Hi! And good luck with your task. If, by any chance, you espy a long established repository for someone's lawn mowings, a tentative 'excuse me but...' might give you access to it. This very morning, as part of a side issue, we've started to dig out our own version of it, and the dark, almost black, material it's produced has been put to excellent use on some needy borders. I can only suggest it would be ideal for your purposes, and free, if dug in as opportunity permits.
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Clay soil needs lots of organic matter to make it more suitable for a wide variety of plants. That's easily the best way of improving it. Adding rotted manure and home grown compost, leaf mould etc, to existing soil, or bought in topsoil, will create a good medium for lots of plants.
I live in west central Scotland - not where that photo is...
I've never used that, so I don't know exactly what's in it. I expect you'd need to add it to other material though.
My raised beds all have old turf at the bottom, then a mix of soil, compost and well rotted manure, which works well for most plants and climbers. The beds vary in height from about 6 inches to a couple of feet. The soil here was just compacted sticky clay under paving, and a lot of builder's rubble, so it would have been impossible to create a good depth otherwise.
I live in west central Scotland - not where that photo is...