perennial phlox 'Wilhelm Kesselring'

Grow in fertile, humus-rich, moisture-retentive soil in full sun, and every autumn add a thick mulch of organic material to help preserve soil moisture

Deadhead to prolong flowering and to remove unattractive dead flowers; cut down to the base in late autumn and remove the cut stems, to reduce the risk of eelworm and mildew the following year

Propagate by division in autumn or spring, by basal cuttings in spring or by root cuttings from early autumn to spring; root cuttings are the best method to ensure healthy plants

Generally pest-free but may be affected by slugs, snails, aphids, and phlox stem eelworm

Generally disease-free but may be affected by crown gall, leafy gall, fungal leaf spot, verticillium wilt, and powdery mildews