June is a crucial month for dahlia enthusiasts, marking the transition from nurturing potted plants to preparing them for a spectacular outdoor display. As the season progresses, it's essential to provide these vibrant blooms with the right care to ensure they flourish throughout the autumn. Here's a comprehensive guide to what you need to do with your dahlias in June, offering expert advice and personal insights to elevate your gardening game.
Planting Out: The Final Push
If you've been nurturing your dahlias in pots, June is the last chance to plant them out in the garden. This process is a delicate balance, requiring careful consideration of soil quality and placement. Jane Westoby, creative director at The Hampshire Seed Company, emphasizes the importance of enriching the soil with organic matter and a slow-release fertiliser like fish, blood, and bone, along with chicken manure pellets. This ensures a strong foundation for your dahlias to thrive.
Sarah Raven, a renowned gardening expert, advises planting tubers in fertile, well-drained soil, ensuring they are completely covered and the lower part of the stem is also buried. This technique provides stability and prevents the tubers from drying out during the summer heat. Mulching with compost and spacing the plants around 75cm apart are additional steps to create an optimal environment for growth.
Watering: The Art of Deep Hydration
Watering is a critical aspect of dahlia care, especially in June. Young dahlias demand frequent watering, especially during hot or dry weather, as they establish their root systems. However, once the plants are settled, a shift in watering technique is recommended. Jane Westoby suggests a deep soak once a week, encouraging roots to grow deep into the soil. This approach is more effective than frequent, shallow watering.
For container-grown dahlias, regular watering is essential, even daily during warm spells. However, caution is advised to avoid overwatering, as it can lead to yellowing leaves. The key is to strike a balance, ensuring the plants receive adequate moisture without becoming waterlogged.
Support Systems: Preventing Top-Heavy Growth
Dahlias, known for their tall stature and impressive blooms, benefit significantly from support systems. In June, as the plants enter their growth spurt, staking becomes crucial. Paul Parker, a perennials and annuals specialist, highlights the importance of staking to prevent top-heavy growth and protect the stems from summer storms. The double ring dahlia plant support from Crocus, made from uncoated steel with a rust effect, is an aesthetically pleasing and functional choice.
Alternatively, bamboo canes offer a classic and sturdy support system. Strong Heavy Duty Professional Bamboo Plant Supports, available in 2ft heights, provide an effective solution for tall dahlia varieties. These supports ensure the plants remain neat and healthy, allowing their beauty to shine without the risk of toppling over.
Feeding: Nurturing Growth and Blooms
Feeding your dahlias in June is a strategic move to encourage strong growth and abundant flowers. Sarah Raven recommends using a slow-release fertiliser or a fortnightly application of liquid comfrey or seaweed fertiliser for potted plants. The Shropshire Seaweed Company Organic Seaweed, available on Amazon, is a certified organic plant food that promotes growth and enhances soil health.
However, caution is advised to avoid overfeeding, as it can lead to the very issue of non-blooming. Finding the right balance in feeding is essential to ensure your dahlias thrive and produce their stunning blooms.
In conclusion, June is a pivotal month for dahlia care, requiring a combination of strategic planting, watering, support, and feeding. By following these expert-approved guidelines, you can transform your dahlias into show-stopping displays, gracing your garden with vibrant colors and textures throughout the autumn. Happy gardening!
