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

Clematis urticifolia · Clematis urticifolia
Plant in a moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or with a layer of pebbles at the base. Plant with the crown of the clematis level with the soil. Ideal for growing through plants in the herbaceous border. See clematis cultivation for further advice.
Balanced clematis feed monthly in spring, higher potash before bloom