Dahlia 'Mercator'

How to grow Dahlia 'Mercator' in NZ

Dahlia 'Mercator' performs best in full sun with fertile, well drained soil enriched with organic matter. Plant tubers in spring once the risk of frost has passed. Water regularly during dry periods to encourage strong growth and continuous flowering. Feed through the growing season with a quality flowering fertiliser. Staking taller stems helps support the blooms and keeps the plant looking its best throughout the season.

Dahlia 'Mercator' care tips

Dahlia 'Mercator' benefits from regular deadheading to encourage new flowers and extend the blooming season. Keep the soil evenly moist but not waterlogged, especially during warm weather. Apply mulch to help conserve moisture and reduce weeds. Remove spent stems at the end of the season and lift the tubers in colder regions if winter conditions are severe, storing them in a cool dry place until spring.

Dahlia 'Mercator' size, spacing, and growth rate

Dahlia 'Mercator' typically grows to about 80 to 120 cm tall and around 50 to 70 cm wide, depending on growing conditions. Space plants about 50 to 60 cm apart to provide good airflow and room for healthy growth. Once temperatures warm in spring, growth is rapid and plants quickly develop into impressive flowering specimens that continue blooming until autumn.

Landscaping uses for Dahlia 'Mercator'

Dahlia 'Mercator' is ideal for adding vibrant seasonal colour to mixed borders, cottage gardens, and dedicated cutting gardens. It also grows well in large containers where it creates an eye catching display on patios and decks. The flowers attract pollinating insects and combine beautifully with other summer flowering perennials. Regular harvesting for indoor arrangements encourages even more blooms throughout the season.

Why buy Dahlia 'Mercator' from The Plant Company?

The Plant Company is NZ’s most trusted plant nursery, offering premium quality dahlias that are carefully selected for excellent performance. Every Dahlia 'Mercator' is supplied with quality in mind to help it establish quickly and flower abundantly. We provide expert growing advice, careful packaging, and fast nationwide delivery, making it easy to enjoy outstanding plants and exceptional service.