We can get away with hand weeding in many parts of the Asian Collection, but China Valley is a new garden and still has a good/bad? seedbank of weeds. Pre-emergent herbicides helps, mulch helps, but we occasionally have to spray. We use Glyphosate at a low rate ~3oz 41%/Gallon of water. We don't broadcast, we hit individual plants. The good news is that every year there are fewer weeks and eventually they'll be controllable without chemicals.
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