Semi-evergreen with deeply cut, parsley shaped foliage bearing masses of pure white flowers with yellow stamens in March-April.  Height and spread to around 1m x 0.6m.  Plant in sun or partial shade. quite happy trailing along the ground or trained up a short wall. Pruning is not necessary and flowering occurs on 1 year old wood so if you feel a need to prune, do this immediately after spring flowering. Gritty, free draining soil in a sheltered position is best.