weeds are not nice to us. Even black top will not always work to defy the
weeds.
Can you take a hula hoe under the gravel? There is also propane torches for burning
weeds. Horticultural vinegar may help. I use that in the cracks around the pool where the
weeds try to grow. Rock salt may also help to control
weeds where you do not plan to plant. And if salty rainwater will not run off into your lawns or flowerbeds.