Veronicastrum (ver-on-ih-KASS-trum) Common Name:  Culver's root Light:  - Part sun to part shade Soil:  Average to rich, well-drained Moisture:  Average to slightly moist Blooms:  Summer Zones:  4 - 8

Veronicastrum v. 'Roseum'

Veronicastrum Description and Cultural Information

Veronicastrum virginicum, Culver's root. 4 - 6'. Resembeling a large Veronica, these tall plants have flower spikes in white, pale purple, or pale blue which arise on individual stems tiered with radiating leaves set at regular intervals. They are easy to grow perennials native to American prairies. 'Roseum' has pale lavender pink flowers. 'Erica' has dark stems and pale pink flowers. Zones 4 - 8.

How to Grow:  Plant Veronicastrum in average to rich, well-drained soil in moderate sun to part shade. They will grow in quite a bit of shade but then have the unfortunate tendency of falling over right at the peak of bloom, so some sun is recommended. Veronicastrum are also not too particular about water and can be relatively drought tolerant. They will wilt to let you know when they are dry but recover quickly after watering. Divide plants in spring or fall as needed. Freshly planted divisions prefer a dry start but can be watered regularly once new growth has been established.

Landscape uses:  Veronicastrum add an excellent vertical accent to the mixed perennial border. Plant them with clump forming, late flowering plants like coneflowers (Rudbeckia and Echinacea), daylilies, Monarda, yarrows (Achillea), hardy Geranium and Sedum.