A single flowering dahlia producing yellow flowers with a large red centre on contrasting dark foliage from midsummer to autumn. Height 60cm. Full sun.
Dahlia ‘Happy Days Bicolour Yellow Red’ is a vibrant, single-flowered dahlia, known for its striking yellow petals with a bold red centre. It thrives in full sun, producing beautiful blooms from midsummer to autumn, adding colour to your garden. At a height of 60 cm, it’s perfect for borders or containers.
PLANTING and AFTERCARE GUIDE
Best Planting Time
The ideal time to plant Dahlia ‘Happy Days Bicolour Yellow Red’ is in late spring or early summer, after the last frost. This allows the plant to establish strong roots before the blooming season begins, ensuring a long and vibrant display of flowers.
Site Selection
Sunlight: Dahlia ‘Happy Days Bicolour Yellow Red’ flourishes in full sun. Choose a location that receives at least 6 hours of direct sunlight per day. The more sunlight the plant gets, the more vibrant the flowers will be.
Soil: Ensure that the soil is well-draining. Dahlia does not tolerate waterlogged soil, which can lead to root rot. A slightly acidic to neutral soil with good fertility will encourage healthy growth. If your soil is heavy, amend it with compost to improve drainage.
Planting Instructions
Prepare the Hole: Dig a hole twice the width of the root ball and the same depth. This ensures there’s plenty of space for the roots to spread and establish.
Soil Preparation: Mix compost or well-rotted manure into the soil to enhance drainage and fertility. Dahlia ‘Happy Days Bicolour Yellow Red’ thrives in nutrient-rich, loose soil.
Planting: Place the tuber or plant in the hole so that the top of the root ball is level with the surrounding soil. Fill the hole with soil and gently firm it around the base to eliminate air pockets.
Watering After Planting: Water thoroughly after planting to help settle the soil around the roots. Ensure the soil drains well and does not become waterlogged.
Watering Requirements
Growing Season: Dahlia prefers moist but well-drained soil. Water regularly during the growing season, especially during dry spells. Allow the soil to dry slightly between waterings to avoid over-watering.
Dormant Season: In the winter months, reduce watering. Dahlias are dormant during this period and require little moisture. Only water if the soil becomes excessively dry.
Feeding
Spring: Before the growing season begins, apply a balanced fertiliser to Dahlia ‘Happy Days Bicolour Yellow Red’. This provides essential nutrients for healthy growth and flower development.
Mid-Summer: A light feeding with a high-potash fertiliser in mid-summer will promote continued flowering and ensure the plant maintains strong growth throughout the blooming period.
Pruning
Deadheading: Regularly remove spent flowers to encourage new blooms and extend the flowering season. Deadheading also keeps the plant looking tidy.
Autumn Pruning: After the final blooms have faded in the autumn, cut back the plant to the ground level. This prepares it for the dormant period and ensures it returns healthy next spring.
Mulching
Spring: Apply a layer of mulch around the base of your Dahlia to help retain moisture, regulate soil temperature, and prevent weeds. Organic mulch such as bark or compost is ideal.
Winter: During the colder months, mulch around the plant to protect the tubers from freezing temperatures. This will help prevent frost damage and promote healthy growth in the following season.
Supporting the Plant
Staking: Dahlia ‘Happy Days Bicolour Yellow Red’ is a relatively compact plant but may still require staking, especially in windy conditions. Use a stake to support the plant and keep the stems upright for better air circulation and improved flower production.
Final Tips
Dahlia ‘Happy Days Bicolour Yellow Red’ is a fantastic addition to your garden, offering vibrant colour and a long blooming season from midsummer to autumn. By planting it in full sun, ensuring it has well-drained, nutrient-rich soil, and following the care instructions in this guide, you will enjoy stunning yellow and red flowers for months.
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Lorraine Green (verified owner) –
Nice big plant with flowers.