What Are the Moisture Requirements for Centranthus ruber 'Snowcloud'?
Well drained

Centranthus ruber 'Snowcloud' · Centranthus ruber 'Snowcloud'
Prefers poor to moderately fertile, well drained, chalky or lime soil in full sun. Thrives in stony soil and will not tolerate winter wet. May need support if grown in richer soils, see staking: perennials
Well drained