So I'm really keen to take my Winston out for some fun in the garden sunshine, but I've learned that unfortunately the gardeners who came at the beginning of May had sprayed some 'Weed & Feed' down on the grass

I've got in touch to ask them the brand name so I can check ingredients, but I haven't heard back yet. It's rained a bunch since then and we've cut the grass back a few times.
In the meantime I've been taking Winston out on the terrace, but as I can allow him much more room to safely roam on the grass what are you thoughts on if it is safe to let him roam on it yet? Or how long I need to wait?
I adopted him in August last year, and had let him out on the grass then, and have only since learned that the gardeners had done the same thing when they came last May and he was OK. But obviously when I had let him roam last year it was later in the summer.
Any advice would be most helpful! Thanks in advance!
