Worry-Free Summer Bulbs

Tips for months of glorious colour in your garden

Want a garden full of gorgeous colour and charming ambiance this summer? Plant summer-flowering bulbs such as dahlias, gladioli, lilies, begonias and callas to create a floral paradise that will bloom for months. Learn how to plant, care for and combine these bulbs for a garden that is not only beautiful but also contributes to biodiversity.

Why choose summer-flowering bulbs?

Summer bulbs add warmth, vibrancy and variety to any outdoor space. They bloom from June until well into autumn and attract bees and butterflies. So, they’re perfect for a colourful garden and contribute to the well-being of nature.

How to plant summer bulbs for optimum results

  • Pick the right spot: sunny with will-drained soil.
  • Planting time: after the last night frost, usually from April to late May.
  • Planting depth: twice the height of the bulb. For dahlias and begonias, a few centimetres of soil will suffice.
  • Tip: Plant them with the pointed tip facing upwards but don’t worry if you did not do this. Most bulbs will find their way on their own.

Care: water, feed and protect

  • Water during prolonged dry periods but avoid waterlogged roots.
  • Add compost when planting to get them off to a productive start.
  • Use mulch or ground covers to retain moisture and prevent weeds from growing.

No garden? Enjoy gorgeous summer bulbs in pots

  • Choose pots with drainage holes and put clay pellets at the bottom.
  • Plant bulbs closer together for a full, lush effect.
  • Place the pots in a sunny spot and water them regularly.

Combine varieties for long flowering

Mixing various varieties of summer-flowering bulbs will extend the flowering season from June to late in the autumn. You’ll create a garden full of colour as well as a source of nectar for bees and butterflies.

Suitable for any garden style

Whether you want a romantic cut-flower garden, a modern outdoor space or a playful border: summer flowering bulbs are perfect everywhere. With a little care and attention, you can enjoy flowers for months!

Author: Simone Visser

Simone Visser has been the go-to blogger for everything related to flower bulbs, perennials and roses for many years. Born and raised in the heart of the Dutch Flower Region, she brings a deep-rooted passion for bulbs and blooms to her writing. Her stories are rich with local insight, personal experience, and a love for the land she grew up in. Whether educating children through projects like Bulbs4Kids or sharing seasonal inspiration, Simone captures the magic of bulbs in every post.

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