How to Fertilize Clematis 'Advent Bells'?
Balanced clematis feed monthly in spring, higher potash before bloom

Clematis 'Advent Bells' · Clematis 'Advent Bells'
Plant in a sheltered position in moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown at soil level. In cold areas, grow in a container and overwinter in a greenhouse or conservatory. See clematis cultivation
Balanced clematis feed monthly in spring, higher potash before bloom