Ground Elder- don't eat it once it flowers

No wonder we have a battle against ground elder in our garden- this is the lane outside our house. In researching how to get rid of it I discovered the following on the WildFoodUK website. 
"This good edible green was brought over by the Romans as a food staple, but soon spread countrywide. The modern day gardener now spends fruitless hours attempting to get rid of it. We’ve found the easiest solution to keep this quick spreading plant under control is to eat it."
BUT BEWARE
"Once Ground Elder flowers it becomes a mild laxative, a diuretic and a soporific so it is best not eaten once the flowers appear or one could fall asleep and wake up in all sorts of trouble!"
My contribution  for Flower Friday