Bring bold summer color to your border with Veronica × 'Seaside' (Speedwell 'Seaside'). You get tall, upright plumes of true-blue flowers held above fresh green foliage, creating a clean, architectural look that reads well from a distance. It is an easy way to add vertical accent and a steady stream of bloom through the heart of summer.
Plant it where it can soak up plenty of sun. In a sunny bed with reasonably well-drained soil, you can expect a mature height around 20-24 inches, making it tall enough to stand out without overpowering neighboring perennials. The neat habit also works well toward the middle of mixed borders, along walkways, or in groupings where repeated flower spikes create a calm, rhythmic effect.
For best performance, water regularly while the plant is establishing and during extended dry spells. Once rooted in, it will handle typical summer conditions well, especially if you mulch to keep roots cool and moisture more even. Deadheading spent spikes can keep the planting looking fresh, and you can also cut stems for simple bouquets. Provide good air flow to help foliage stay clean and reduce disease pressure.
Pair Speedwell 'Seaside' with other sun lovers that share similar moisture needs, such as coneflowers, black-eyed Susans, ornamental grasses, or compact garden phlox. Its clear blue tones are also striking next to silver foliage and yellow-flowering companions, giving you crisp contrast from early to late summer.