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Spent some time last weekend hoeing a patch of ground that had had 8 rows potatoes in it!
They had been lifted about 4 weeks ago and soil has been raked over twice since, but small plants of chickweed and groundsel had sprung up, so out with the hoe!
The soil to a spades depth was bone dry and I mean bone dry as we have not had any rain for months I just left them as they were as the experts says hoe them and leave them to die!
We had the first drop of rain for yonks over this Friday night Saturday morning so I called into the plot in passing, guess what, lot of the weeds had perked up they never died even after a week of warm sunny days!
I have found this in the past, most times I rake up what I have hoed and dump them, I never compost chickweed as even the smallest plants seem to have seed heads viable or not!