André Troylilas wrote:A belgian permie regurlarly tells that the buttercups are edible, bringing lots of interesting nutriments but as horrible as can be regarding the taste.
In my garden, I put lots of straw in order to contain their development; it somehow works, but they're still there.
I do hope they will go away when my soil will be better; I heard they were frequent on hydromorphic compacted soils.
You know drainage of a piece of ground is poor if you see water standing long after rain has stopped. The presence of wetland plants such as purple loosestrife, yellow flag, cardinal flower, buttercup, horsetail, Joe-pye weed, smartweed, sedges, buttonbush, winterberry, and, of course, cattails is another indication.
Soils that are only moderately high in clay yet are high in sodium, the latter a condition common in the western part of the U.S. and near salted roads in these parts, also suffer from poor drainage. Sodium prevents the aggregation of small clay particles into larger units. Remedy this condition by substituting calcium, usually from gypsum, for that sodium. Acidity resulting from application of sulfur or iron sulfate can dissolve calcium carbonate in alkaline soils to release calcium and produce the same effect.