Verbena hastata 'Alba' (White Vervain)

How to grow Verbena hastata 'Alba' in NZ

To grow Verbena hastata 'Alba' in New Zealand, choose a sunny or partially shaded site with moist, well-drained soil. Plant in spring or autumn, spacing about 40 to 50 cm apart. Water the plant regularly during dry spells, especially while it is establishing. It tolerates damp conditions and is well-suited to borders or naturalistic plantings. Deadhead spent blooms to prolong flowering, and cut back in winter to promote fresh spring growth. It may self-seed in suitable conditions.

Verbena hastata 'Alba' care tips

Verbena hastata 'Alba' thrives in full sun to light shade and prefers moist, well-drained soil. Water regularly during dry periods, especially in summer. Deadhead faded flowers to encourage repeat blooming and prevent excessive self-seeding. In late autumn or early winter, cut back spent stems to tidy the plant and promote vigorous new growth in spring. Mulching can help retain soil moisture. This hardy perennial is generally pest and disease-free, making it easy to care for in NZ gardens.

Verbena hastata 'Alba' size and spacing

Verbena hastata 'Alba' typically grows to about 90–120 cm tall and 45–60 cm wide. When planting in garden beds or borders, space plants 45–60 cm apart to allow for good airflow and natural spreading. This upright perennial forms clumps with tall flower spikes, making it ideal for mixed plantings or as a vertical accent in sunny garden areas.