Veronica longifolia 'First Love' is a compact, clump-forming speedwell grown for its vivid pink flower spikes and neat, deep green foliage mound. You will get the best flowering and strongest stems in full sun, but it also tolerates light/partial shade, especially where summers are hot.
Plant it in average, well-drained soil and keep moisture consistent, particularly while it is establishing and during summer bloom. Good drainage is important through winter. A light mulch helps hold even moisture and keeps the root zone cooler in warm weather.
As the first flush of bloom fades, deadhead spent spikes to encourage additional flowers and keep the planting looking fresh. After flowering, you can shear or cut the plant back to basal growth to tidy it and promote new growth. This is a low-maintenance perennial for edging, border fronts, rock gardens, and containers.
'First Love' is often noted for tolerating deer and rabbits in the landscape, making it a strong choice for gardens where browsing is common.