In article ,
Drakanthus writes

Why is it that weeds always grow more vigorously than the plants we want to
grow?
Because they are plants growing in a self chosen location, rather than
in one decided by the gardener. In fact, not all self-set plants do grow
vigorously, it's just that the ones which do are more noticeable.
--
Alan & Joan Gould - North Lincs.