yes plant soon

[charles]

 I found that mulching with 6in green waste or manure or whatever compost, with cardboard under the edges only, was enough to kill about 90% of the buttercup and then I could trowel the rest, while veg were growing eg lettuce, spinach, potato etc. See archived This Month, such as the original post of 1st March 2013 here (half-way down) for beds made in many different ways http://www.charlesdowding.co.uk/content/march-2013-updated-15th and they all worked, but if you can manage a six inch layer of compost that is best I reckon.