How to Fertilize clematis 'Will Goodwin'?
Low nitrogen feed in spring, higher potash before flowering

clematis 'Will Goodwin' · Clematis 'Will Goodwin'
Plant in a 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 5-8cm (2-3in) deep to encourage new shoots to grow from below ground level. See clematis cultivation for more advice
Low nitrogen feed in spring, higher potash before flowering