Vinegar works for most weeds but you have to buy the high strength.
Horticultural vinegar weedkiller test results - YouTube
Horticultural vinegar weedkiller test results - YouTube
What a pretty lot!
If you want a perfect driveway then Id suggest digging out about 4-6 inches, lay down landscape fabric and go with 4-6 inches of new 3/4 crusher run crushed limestone and pack down. Wait a year then add another 1 inch of 1/4 crusher run limestone.
If it was my driveway Id probably embrace the grass and keep cutting it really low on the driveway. Nature will always take over so to keep it clear you will need to either keep working it or use chemicals. If I was experiencing issues with drainage and pot holes Id dig it out and regrade.
For maintenance I use a modified blade with tail wheels and side wings, sort of like a modified box blade. I use it every spring after the ground has thawed and firmed up to regrade as needed. Its impossible to keep the grass from re-growing without a lot of work.
I have no shortage of equipment (Harley Rock Rake for One), but this is a battle that is almost impossible to win.
Farmers use Evil chemicals on our place already. I was thinking of Roundup for the driveeay vegetation issue.
I still have a picture in my mind of an 80 something year old friend on her knees removing the growth from her gravel driveway. That level of dedication and time, seemed to work.
I'm finding some of this almost humorous especially the desire to use high strength vinegar for weed control.
People that don't want to use chemicals but think that vinegar is not a chemical, the part that is killing weeds is the Acetic acid in it.
Acetic acid is a chemical, or is dilution the solution for it but not other products.
You all have a good day and have fun.
Great thread, as I now have the same problem at my place. I have a good 3-6" of clean limestone 21A on my 3-4 year old driveway. But with way less guest traffic this year (darn you, covid), and great grass growing weather, I've watched my gravel disappear below a carpet of grass and weeds in many spots. Also not going to put chemicals on my driveway near my well, yard, gardens, etc.
Thanks for the link, Lou. I just printed a few HF coupons for other tool/camper needs right now, so I'll pick one of those up soon and go to town! I should have done this sooner, as now I'll have dead thatch and the dirty root ball clods to contend with. Oh well. After I kill it all, I will probably use my box blade ripper to scratch it up a bit, then switch to my rear blade to pull it out smooth again. If my budget agrees, another thin top layer of clean limestone would be awesome. TBD.
I would recommend you avoid the clean limestone. Get the crusher run! It will pack fairly solid, which will REDUCE the grass growth (not sure anything stops grass growth). A frequent ‘regrading’ will help to disturb the grass growth also.
If a redistribution of crusher run is needed, you will probably need to run the BB rippers to break it lose (for wash outs and ruts for instances).