Veronica ‘First Love’ – A compact hybrid Speedwell with spikes of eye-catching bright pink flowers from June through to August when deadheaded. These are borne over compact mid-green foliage that averages 6 to 8″ high. An excellent choice for massing in bed foregrounds provided it gets a part to full sun exposure. Grows 8-12″ high by 18-20″ wide. Hardy to zone 4.
Veronica longifolia ‘First Glory’ – The rich purplish-blue flower spikes of ‘First Glory’ are borne from June to August (and even through to September when deadheaded) and will be constantly tempting the butterflies. This is also a good choice to plant near the vegetable garden as it is bound to attract pollinators. Prefers evenly moist soils. Grows 22″ high by 18″ wide. Zone 4.
Veronica repens ‘Sunshine’ – A creeping Speedwell with tiny golden-yellow leaves that form a dense mat, useful in rock gardens or as a groundcover. It is reported to bear small near-white flowers in spring, although my plants produced sporadic purplish-blue blossoms. Requires regular watering during periods of extreme heat. Grows 1″ high by 6-12″. Z5.
Veronica spicata ‘Giles van Hees’ – Another compact Veronica with slender tapered spikes of purplish-pink blooms that often attract butterflies and hummingbirds. It flowers from June to August and perhaps even longer when the spent flowers are removed. These actually make good cut flowers, albeit only suitable for a bud vase. Grows 6-12″ high by 8-10″. Zone 3.
Veronica gentianoides ‘Variegata’ – The Variegated Gentian Speedwell is a semi-evergreen perennial with spoon-shaped ground hugging (2-3″ high) green leaves edged in cream. It bears tall spikes of white flowers with pale blue striping from late spring to early summer. This plant performs poorly under drought conditions, so keep evenly moist. 12-18″ high and wide. Z4.