Miraclegro is not food? Hmmm, will investigate for lawn feed, thanks. Yes, must be some way of getting tested (or testing myself) the soil I've got here.
One other thing that's occurred to me--what's the difference between ordinary grass seed and "hard wearing"? Didn't occur to me that the hard-wearing might be the needly stuff I've been getting come up. I've been using the hard-wearing for overseeding....