Madmeg
I an probably going to be slated but we cannot cope in our garddhen without chemicals, even though I grow some fruit and veg. DH knows nothing about gardening (his GF was a gardener!) and has even less interest in it. We planted the dreaded Lleylandii nearly 50 years ago but they never got trimmed properly (we are having the height severely chopped this month), but the hedge is now abt 8-feet deep!
Nor does he bother about weeding or lawnmowing so that is all my job. We have developed ivy, brambles, mares tail, and other stuff which is ugly and highly spreading. And now he is disabled so it is all down to me.
But I simply can't cope with it without chemicals (including the dreaded glyphosate),
I never spray on a windy day and 95% of the weeds are at the not near my veggies.
I wish I didn't have to use chemicals at all but the garden is a terrible mess. Of course I have tried all the non-chemical remedies but they simply don't work.
Neither of my neighbours grow fruit and veg.
I operate on a "little and often" basis personally for keeping an eye on my garden personally.
There was quite a weed problem to start with - but I got shot of it one way or another. Part of it was figuring out what would "blow itself out" after a certain number of years (there's only so long some seeds can remain dormant in the soil), partly by extensive use of that garden fabric cloth over much of the garden blocking them out until they gave up and died on me, partly putting bark chippings down on top of my soil (ie less bare soil for them to get into).
I soon learnt that I'd get several nascent sycamore trees per year blowing over from nearby if I didnt watch it - so Inspection Parade included learning to recognise their seedlings when they were just a few inches tall and I could pull them out very easily.
Ivy - yep.....I pull that out as soon as I see it rearing its little head and hoick it out straight off if I see it wending its way in from adjacent land.
I had bindweed in one area - coming through from "some bordering land I want - but a neighbour owns it and won't sell it to me". But it was all tangled up with two fences that were along that side of my garden when I bought the house - and so I asked the neighbour concerned if I could borrow the use of that land briefly to get bulldozer and builder in and both fences got ripped out and replaced by my wall. The foundations of that wall were pretty deep and I think that was what probably solved that problem - ie too deep for the bindweed to go down to. There hasn't been a thread of bindweed on my garden ever since then - and I've not spotted any on that adjacent bit of land either - and am guessing that neighbour was pretty pleased I'd had it all removed and it wasn't going to come back. I think neighbour had a pretty good deal out of that - as I didn't even ask them for a contribution towards the cost of that wall and just paid it all myself (and it wasnt cheap - as I'm from the West Country and not West Wales - and that meant my style of wall is red brick and not the concrete block walls so prevalent here - as I hate them).
I spotted "potential nasty" once in my garden. In between the cracks in the previous paving stones that were there I saw short green shoots coming up that I identified as "Trouble". Horsetail and I basically treated them with blocking the light and with boiling water. That tiny patch had only got to a few inches high when I spotted it and so I got out my nail scissors and cut to the millimetre as short as those scissors would reach, then poured a couple of kettles of boiling water over it and then blocked off any light from reaching the developing plant by putting spare paving stones on top of it - so that it couldnt get any light to "feed" it. I had to do it a couple of times and that was the end of that. I wasn't going to wait for them to get a chance to grow to a couple of feet tall. I do literally "nip in the bud" stuff on anything unwanted that could prove a problem.
I think, in your position, I'd hire a (knowledgeable and organic) gardener and pay for a couple of hours of their advice and help. One of the first things I did in this house was to find myself someone exactly like that and pay for a little bit of his time for him to come and visit me and give me advice on what I could do with my unpromising little concrete garden that came with the house when I bought it.
I've used "Nasty Chemicals" once since I bought this house and once only and on one little tiny spot. This is an area where I could see Japanese Knotweed isn't dealt with by a lot of people that get it!!!!!!! I was gobsmacked when I've told several people they have it on their garden etc and been astonished when they've just shrugged - and done nothing!!!! I checked out whether I should be safe from that in this little vicinity with someone-who-should-have-known and he told me I would be. At a point after that I spotted a tiny bunch of short dead-looking brown-stemmed stems poking up from an adjacent bit of wild land. I couldnt speculate as to who might have just popped over and threw a whole can or two of petrol straight over the top of that and then covered it with quick-setting cement.........but it obviously did the trick of making darn sure and certain that both the possible contenders for "worrying weed" were knocked-out (ie Japanese Knotweed and bamboo). I think I'd have had 40 fits if a neighbouring owner had landed up inflicting such a problem weed on me...(what do I mean 'think' .....?)