We're offering you a 5 or 10 Dahlia Perfect Patchwork Mix for £12.99, saving you up to 32% off Thompson and Morgan's's price of £18.99 (correct as of 17.02.2026).

Bi-Coloured Dahlias

Dahlia 'Perfect Patchwork' Mix brings a burst of artistic colour to your garden. These perennial tubers are renowned for their unique bi-coloured petals—each bloom blends two distinct hues, resulting in a dazzling patchwork effect that stands out in any border or bed.

• Breathtaking Blooms: From mid-summer until the first frost, expect an ongoing display of large, eye-catching flowers. Dahlias (genus Dahlia) are celebrated for their bold, symmetrical blooms and vibrant palette.
• Reliable & Robust: These dahlias withstand the unpredictability of British weather, ensuring your garden remains lively and colourful even when conditions vary.
• Low-Maintenance: Suitable for all experience levels—simply plant the tubers in well-drained soil after the final frost. Water regularly and deadhead spent blooms to encourage new growth.
• Versatile Beauty: Ideal for garden borders, mixed beds, or as cut flowers—bring their patchwork beauty indoors for stunning vase displays.

Growing Guide

• Planting Time: Plant tubers outdoors from late March to May after risk of frost has passed.
• Sun Requirements: Dahlias thrive in full sun but tolerate partial shade.
• Soil Preferences: Prefers fertile, well-drained soil with a neutral to slightly acidic pH (6.5–7.0).
• Mature Size: Reaches approximately 60–100cm tall; space tubers about 45cm apart.
• Watering: Keep soil moist but not waterlogged; mulch helps retain moisture and suppress weeds.
• Pests & Care: Watch for slugs and snails; stake taller plants if needed. Lift tubers after the first frost for winter storage in colder regions.

Usage Ideas

• Create vibrant borders by pairing with Salvia, Rudbeckia, or ornamental grasses.
• Add height and drama to mixed containers or cottage-style gardens.
• Cherish as long-lasting cut flowers—perfect for bouquets and arrangements.

FAQs

• When is the best time to plant these dahlias?
  The ideal time is in spring after the last frost—typically late March to May in the UK.
• How do I care for dahlias over winter?
  Lift tubers after the first frost, dry them off, and store in a cool, frost-free place until replanting next spring.
• Do they need full sun?
  Dahlias perform best in full sun but will tolerate light shade; at least six hours of sunlight daily is recommended.