How to Water Clematis 'Hendryetta'?
Deep regular watering, keeping roots cool and never chronically dry

Clematis 'Hendryetta' · Clematis 'Hendryetta'
Plant herbaceous clematis in moisture-retentive, well-drained soil in full sun, with the roots and base of the plant in shade. Plant with the crown of the clematis level with the soil. Ideal for growing through plants in the herbaceous border. See clematis cultivation
Deep regular watering, keeping roots cool and never chronically dry