We're offering you a Dahlia Delightful Dinner Plant Mix for £12.99, saving you up to 41% off Thompson and Morgan's's price of £21.99 (correct as of 16.03.2026).

Delightful Dinner Plate Collection

Dahlia 'Delightful Dinner Plate' Collection brings showstopping size and colour to your garden. This perennial tuber mix features Dahlias renowned for their enormous, vibrant blooms—each flower can reach up to 25cm (10 inches) across, making them true centrepieces in any outdoor space.

• Flowering Period: Expect a spectacular display from mid-summer through the first autumn frosts.
• Growth Habit: Upright stems support large, multi-layered blooms in shades from deep purple to bright yellow.
• Mature Size: Typically reaches 90–120cm (3–4 feet) tall.
• Hardiness: Half-hardy perennials; lift tubers after frost in colder regions or mulch well.

Growing Guide

• Planting: Plant tubers outdoors after the last frost (late spring), spacing them about 60cm apart in rich, well-drained soil.
• Sunlight: Dahlias thrive in full sun—at least 6 hours of direct light daily.
• Watering: Water regularly but avoid waterlogging; allow soil to dry slightly between waterings.
• Feeding: Apply a balanced fertiliser every few weeks during the growing season for best results.
• Care: Deadhead spent blooms to encourage continuous flowering. Stake taller varieties to support heavy flower heads.

Design & Usage Ideas

• Borders & Beds: Use as bold accents among other summer perennials like Rudbeckia or Salvia.
• Cut Flower Gardens: Their long stems and vibrant colours make them ideal for bouquets and vase arrangements.
• Pots & Containers: Plant in large patio containers for dramatic displays on terraces or balconies.

FAQs

• When is the best time to plant Dahlia tubers?
  The best time is after the last frost in spring, typically from late April to May.
• Do Dahlias need full sun?
  Yes, Dahlias perform best in full sun with at least six hours of direct sunlight each day.
• How do I care for Dahlias over winter?
  Dahlias are not fully hardy—lift tubers after the first frost, dry them off, and store them in a cool, frost-free place until spring planting.