We're offering you a 9 or 18 Dahlia 'Romantic Bouquet Mix' for £14.99, saving you up to 25% off Thompson and Morgan's's price of £19.99 (correct as of 29.01.2026).

Dahlia 'Romantic Bouquet Mix' – Botanical Beauty for UK Gardens

The Dahlia 'Romantic Bouquet Mix' is a curated collection of nine unique Dahlia varieties, each selected for their vibrant colours and distinctive bloom forms. This perennial favourite offers double, cactus, and pompom blooms that create dynamic textures and a truly enchanting display from early summer through the first frosts. Dahlias are native to Mexico and Central America but have become beloved in British gardens for their bold presence and reliable flowering.

• Flowering Period: Enjoy continuous colour from June to October.
• Bouquet Mix: Each pack contains a harmonious blend of reds, lavenders, and pinks—perfect for cut flowers or show-stopping borders.
• Growth Habit: Upright stems reach heights of 80–120cm, making them ideal for the back of borders or as dramatic focal points in containers.

Growing Guide & Care Tips

• Planting Time: Plant tubers outdoors after the last frost (typically April–May in the UK).
• Sun Requirements: Dahlias thrive in full sun—choose a spot with at least six hours of sunlight per day.
• Soil Preferences: Prefers fertile, well-drained soil. Incorporate organic matter before planting for best results.
• Watering: Water regularly during dry spells but avoid waterlogging. Mulch to retain moisture and suppress weeds.
• Feeding: Apply a balanced fertiliser monthly during the growing season for robust blooms.
• Staking: Tall varieties benefit from staking to support heavy flower heads.

Seasonal Care & Maintenance

• Deadheading: Remove spent blooms to encourage continuous flowering.
• Lifting Tubers: In colder regions (below USDA zone 8), lift tubers after the first frost and store them in a cool, dry place over winter.
• Pest Watch: Keep an eye out for slugs and snails on young shoots; protect as needed.

I nspiration & Planting Ideas

• Create romantic borders by pairing with Salvia, Cosmos, or ornamental grasses.
• Add drama to patio pots—mix with trailing Lobelia or Petunia for layered interest.
• Dahlias make exceptional cut flowers—harvest early in the morning for longest vase life.

FAQs

• When is the best time to plant Dahlia tubers?
  The best time is after the last frost has passed—usually April or May in most parts of the UK.
• How tall do these Dahlias grow?
  Dahlias in this mix typically reach between 80–120cm at maturity.
• Can I leave Dahlias in the ground over winter?
  If your area is mild (USDA zone 8 or above), you can mulch heavily and leave them in situ; otherwise, lift and store tubers indoors until spring.