We have heavy clay soil which I’ve been adding plenty of organic matter to over the past 5 years (bark, compost and manure) but I want to improve the drainage more to plant tulips, alliums etc as living beneath a mountain in the NW means we have our fair share of rain! so I ordered what I thought was horticulture grit from a local pit.
Now I was expecting something like the potting grit you’d get in Homebase (10mm washed chips) but when it got here it looked just like normal sand. The OH called it sharp sand. Rang the pit back, they explained that that is what all the farmers add to their land to improve drainage.
So thought no more of it and spent the day adding it to my boarders. Came in later went onto Google which said that adding sand is at best ineffective and can turn clay to concrete
I’ve probably undone my years of good work! Any thoughts?