Description
Grow in medium moisture, slightly acidic, well-drained garden loams in full sun. Best flowering and disease resistance generally occur in full sun. ‘Veilchenblau’ has some tolerance for part shade. Water deeply and regularly (mornings are best). Avoid overhead watering. Good air circulation promotes vigorous and healthy growth and helps control foliar diseases. Summer mulch helps retain moisture, keeps roots cool and discourages weeds. Remove spent flowers to encourage rebloom. Remove and destroy diseased leaves from plants, as practicable, and clean up and destroy dead leaves from the ground around the plants both during the growing season and as part of a thorough cleanup during winter (dormant season). Avoid pruning for the first 3 years after planting so that the canes can properly develop. Canes must be hand-fastened to a support structure. Prune thereafter as needed (i.e., remove diseased or injured branches and prune out any poorly flowering canes) in late winter to early spring. (Courtesy of Missouri Botanical Garden Plant Finder)
