Image from W.Fitch (Curtis's botanical magazine 69: t. 3983. 1843) [Public domain] via Wikimedia Commons
Clematis patens 'Grandiflora'
Flowers larger than patens itself, ie 15cm diameter plus. White to lilac-blue or violet blue flowers with a green bar on the outer surface of the tepals.
| Group: | Early large-flowered group |
| Parentage: | ?Selection from patens |
| Other name(s): | caerulea var grandiflora; patens var grandiflora; azurea grandiflora; 'Azurea Grandiflora' |