Deep-green foliage and violet-blue flower spikes make 'Sunny Border Blue' Veronica (Veronica spicata 'Sunny Border Blue') extra-attractive in the garden. With deadheading the plant will bloom all season long in sun or very light shade, reaching 24 inches tall by 18 inches wide in sun or partial shade. It's very effective at the front of the border and makes a superb mix with flowers in the yellow-to-orange spectrum, as with the Butterfly Weed in this photo.