Culture
Easily grown in average, medium moisture, well-drained soil in full sun. Best performance occurs with consistent, regular moisture combined with sharp soil drainage, particularly in winter. Plants have shallow roots and are generally intolerant of dry soil conditions. Tolerates light shade. Remove spent flower spikes to encourage additional bloom. Plants may be cut back to basal growth after flowering.
Noteworthy Characteristics
Veronica spicata, commonly known as spike speedwell, is an upright, clump-forming, herbaceous perennial that typically produces a summer-long bloom of tiny, star-shaped, violet-blue flowers in dense, long-flowering, tapered-at-the-top, spike-like terminal racemes atop stems rising well above a foliage mound to 24-30” tall. Foliage consists of toothed, narrow, linear to lanceolate, medium green leaves (each to 2” long). This species is native to northern Europe and Asia. Flowers typically bloom from mid-June to August. Flowers are attractive to bees and butterflies. Cultivars with blue, violet-blue, pink and white flowers are available in commerce.
Genus name honors Saint Veronica who reportedly gave a handkerchief to Jesus so he could wipe sweat from his face on the way to Calvary, with some genus plants having markings that resemble the markings on the sacred handkerchief.
Specific epithet from Latin means spiked in reference to the flower spikes on this plant.
'Noah Williams' is an erect, bushy, clump-forming veronica which typically grows to 12-24" tall and is noted for its variegated foliage. It is reportedly a mutant of Veronica spicata 'Icicle'. Dense, vertical, white-flowered terminal spikes (racemes to 8" long) tower above the foliage in late spring to mid-summer. Narrow, lance-shaped leaves (to 2" long) have creamy-white margins.
Problems
No serious insect or disease problems. Root rot may occur in wet, poorly-drained soils.
Uses
Rock gardens, foundations, beds, borders and other sunny spots in the landscape. Good fresh cut flower.