Main page Habit Foliage Flowers Roots Seedlings Control
Using the red pen as a visual scale, look at the size of the pearlwort
foliage compared to its root system. When you see small pearlwort (Sagina
procumbens) in your containers, it's already too late to apply preemergence
herbicides. Preemergence herbicides will form a chemical barrier about
1/2 inch below the soil surface, where weed seedlings will be inhibited
from growing. But as you can see from this photo, even small pearlwort
have roots that are below 1/2 inch and will thus escape the effects of most
preemergence herbicides.
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