Tall larkspur Interesting Notes

Delphinium exaltatum is an attractive and floriferous native woodland-edge perennial that is equally at home in the home garden border. Growing to a height of 4’, this summer-blooming perennial has attractive medium-green, palmate leaves and narrow stalks of showy, deep blue-purple flowers that attract hummingbirds and butterflies. Tall larkspur excels in moisture-retentive, well-drained, humus-rich, slightly alkaline soil and prefers filtered shade to full sun. Delphinium exaltatum is an attractive addition to the garden when planted en masse with Coreopsis tripteris, Solidago rugosa‘Fireworks’, Vernonia angustifolia, Silphium simpsonii, and Veronicastrum virginicum. - Mt. Cuba Center

Tall larkspur has grayish green leaves divided into 5 lobes that are in turn divided into 3 teeth at their tips. It is a large and vigorous plant. It blooms fairly late, so the foliage remains in good condition most of the summer. - William Cullina, Growing and Propagating Wildflowers

exaltatum = very tall - Dictionary of Botanical Epithets

Delphinium exaltatum Growing and Maintenance Tips

Grow in partial to full shade in rich soil with high organic content. Seeds in freely when happy. Prefers average to rich soils with good drainage and is quite drought tolerant once established. Not one for clay!