Clematis 'Louisa Plena'
Semi-double white flowers edged lilac.
| Group: | Early large-flowered group |
| Raised by: | L Simon-Louis |
| Date raised: | i1962 |
| Parentage: | patens x unknown |
| Other name(s): | 'Louisa Flora Pleno'; patens 'Louisa Plena' |