We're offering you a Upto 6 Dahlia Rhubarb and Custard for £5.99, saving you up to 40% off Thompson and Morgan's's price of £9.99 (correct as of 03.02.2026).

Dahlia 'Rhubarb and Custard' – Botanical Beauty for Every Garden

Bring a splash of vibrant colour to your garden with the Dahlia 'Rhubarb and Custard', a captivating Colarette dahlia variety renowned for its abundant blooms and unique palette. Each flower features pale peach petals accented by deep pink bases and a frill of blush-pink mini-petals, creating a show-stopping display from midsummer through early autumn.

• Botanical Name: Dahlia 'Rhubarb and Custard'
• Type: Perennial tuberous flowering plant
• Mature Size: 60-90cm tall, 45cm wide
• Flowering Period: July to October
• Best For: Borders, containers, cottage gardens, and as cut flowers

Why Choose Dahlia 'Rhubarb and Custard'?

• Abundant, long-lasting blooms brighten your outdoor space all summer.
• Dainty yet resilient plants add delicate texture and bold colour contrast.
• Perfect as a garden centrepiece or companion to perennials like salvia, rudbeckia, or ornamental grasses.

Growing Guide & Care Tips

• Planting Time: Plant tubers outdoors after the last frost (typically late April–May).
• Soil: Prefers well-drained, fertile soil (neutral to slightly acidic pH).
• Sunlight: Full sun (minimum 6 hours daily) for best flowering.
• Watering: Water regularly during dry spells—avoid waterlogging.
• Feeding: Apply balanced fertiliser every few weeks during the growing season.
• Pest & Disease: Watch for slugs/snails; deadhead spent blooms to encourage new growth.
• Tuber Care: In colder regions, lift tubers after first frost, dry, and store in a cool, frost-free place until spring. In milder areas, mulch well if left in the ground.

The Perfect Addition To Your Garden Scheme

• Adds vibrant contrast when paired with purple salvias or blue agapanthus.
• Makes stunning cut flowers for indoor arrangements.
• Suits cottage gardens, mixed borders, or container displays on patios.

FAQs

• When is the best time to plant Dahlia 'Rhubarb and Custard'?
  The best time is after the last frost in spring—usually late April through May in the UK.
• How tall do these dahlias grow?
  This variety typically reaches 60–90cm in height with a spread of around 45cm.
• Do I need to lift the tubers every winter?
  If you live in colder areas (below -2°C), lift tubers after the first frost. In milder regions, you can leave them in the ground with a thick mulch for protection.