- Author: Steven A Fennimore
Published on: June 23, 2021
Common Purslane Biology
Steve Fennimore, Extension Specialist UC Davis
July appears to be the period of maximum emergence of common purslane (Portulaca oleracea) see figure 1 attached. Purslane is considered a summer weed with peak emergence occurring during warm weather. Purslane seeds are small and germinate best from the soil surface and from very shallow soil layers <0.25 inches. Purslane seed have the lowest level of dormancy during July when we see large flushes of this weed. It is best to cultivate purslane when it is very small – within the first 3 weeks, as uprooting will generally kill the small seedlings. Starting at 4 weeks purslane becomes harder to control. We found that uprooted 4, 5 and...
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