Gardeners urged to deadhead three key flowers now to prolong autumn colour

Deadheading and clipping back spent dahlia flowers

Deadheading encourages further blooming and helps improve overall plant health. (Image: Getty)

As summer gives way to autumn, September is the perfect time for to focus on pruning and deadheading to maintain a vibrant garden.

(RHS) is urging gardeners to deadhead three specific flowers this month to extend their blooms and preserve colour into the cooler weeks ahead.

is the process of removing spent or faded flowers.

It ensures a neat appearance while promoting plant health by preventing fungal infections that can lead to stem die-back.

The RHS warns that failing to trim fading blooms can result in messy, slimy patches when exposed to , leaving gardens looking dishevelled.

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man wearing gardening gloves cutting zinnia flower with scissors, close-up

This is the optimal time to deadhead your flowers. (Image: Getty)

To keep your garden looking its best, the RHS recommends targeting three flowers for deadheading:

  1. Dahlias
  2. Delphiniums
  3. Roses and Penstemons

“Continue to deadhead plants such as dahlias, delphiniums, roses, and penstemons to prolong the display and give colour well into the month,” the RHS advised.

This practice encourages further blooming and helps improve overall plant health, ensuring a longer-lasting and more vibrant floral display through autumn.

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In addition to maintaining neatness, deadheading plays a crucial role in supporting the longevity and productivity of plants.

It provides gardeners with beautiful, long-lasting floral arrangements in borders, containers, and rock gardens.

By taking a few simple steps now, gardeners can keep their gardens bursting with colour well into the fall season.

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