De Ree UK Dahlia Decorative Mystery Day (1 Bulb) by Jamieson Brothers

Dahlia 'Mystery Day' is a striking, bold variety that brings rich contrast and drama to the garden with its large, bi-coloured blooms. This dahlia features dark, velvety red petals edged in bright white, creating a dazzling display that stands out in borders, beds, and containers. Blooming prolifically from midsummer until the first frost, Dahlia 'Mystery Day' is an excellent choice for adding depth and vibrancy to any garden design. Its eye-catching flowers also make it perfect for cut flower arrangements, bringing a touch of elegance indoors. Hardy in the UK with proper care, this dahlia is a stunning choice for creating standout displays.

The blooms of Dahlia 'Mystery Day' are large, fully double flowers reaching up to 15-20cm in diameter. Each flower head features deep, velvety red petals outlined with a bright white margin, creating a striking bi-colour effect. The petals are broad and gently curved, forming a full, rounded bloom that captures attention. Set against lush green foliage, these dramatic flowers add a touch of sophistication and contrast beautifully with other summer blooms, making them a standout in any garden.

How to Grow
Planting: Plant 'Mystery Day' dahlia tubers in spring after the last frost has passed, in a sunny location with well-drained, fertile soil. Position the tubers about 10-15cm deep, with the “eye” or growth point facing upwards, and space them around 45-60cm apart to give them room to grow.
Watering: Water the tubers well after planting to help them establish. Once shoots appear, water regularly, keeping the soil consistently moist but not waterlogged. Deep watering once or twice a week during dry spells will encourage strong growth and abundant blooms.
Feeding: Use a high-potassium fertiliser, such as tomato feed, every two weeks once flowering begins. Regular feeding will support healthy blooms and keep the plant looking vibrant throughout the flowering season.
Staking: With its large blooms, 'Mystery Day' may need staking, particularly in exposed areas. Insert stakes at planting time to avoid disturbing the tubers later, and tie the stems loosely to support the flowers as they grow.
Deadheading and Maintenance: Regularly deadhead spent blooms to encourage a continuous flush of fresh flowers and a tidy appearance. After the first frost, cut back the foliage, and either lift and store the tubers or cover them with mulch if leaving them in the ground over winter.
Overwintering: In colder regions of the UK, lift and store dahlia tubers after the first frost. Allow them to dry, then store them in a cool, frost-free place in slightly damp compost until replanting in spring. In milder areas, add a layer of mulch for winter protection if leaving them in the ground.

With its bold, bi-colour blooms and long flowering period, Dahlia 'Mystery Day' adds dramatic beauty and charm to UK gardens, providing vibrant displays from summer to autumn. This dahlia’s eye-catching flowers make it a perfect choice for both garden enjoyment and indoor arrangements, creating a sense of luxury and elegance in any setting.

Pack contains 1 bulb