Plants That Repel Greenfly

Natural deterrents for greenfly

February 13, 2024 | 8 min read
Various plants known to repel greenfly

Hello there! We're the Hedge Cutting Staffordshire team, a professional gardener and hedge cutting contractor based in the lovely county of Staffordshire. These pesky insects can wreak havoc in gardens, especially during the warmer months. Fortunately, there are natural ways to deter them, and today, I'm sharing some of my favourite plants that can help keep greenfly at bay.

Quick Answer

To repel greenfly, plant aromatic herbs like lavender, mint, and rosemary. These act as natural deterrents and can be integrated into your garden design.

Understanding Greenfly

Greenfly, also known as aphids, are small, sap-sucking insects that can cause significant damage to plants. They thrive in the UK climate, particularly from spring through to late summer.

Plants That Naturally Repel Greenfly

Lavender

Lavender is not only a beautiful addition to any garden, with its vibrant purple flowers and delightful scent, but it's also a fantastic natural greenfly deterrent. The strong fragrance is off-putting to these pests. Consider planting lavender along garden borders or interspersed between other plants.

Mint

Mint is another excellent choice. Its pungent aroma can effectively repel greenfly. Just be cautious with mint; it can be invasive, so it's best grown in pots or containers to keep it under control. Place these strategically around your garden to maximise their effect.

Rosemary

Rosemary, with its woody scent, is a great companion plant. Not only does it deter greenfly, but it also attracts beneficial insects like bees. Plant it near vegetable patches or around rose bushes for added protection.

  • Lavender - repels with a delightful scent
  • Mint - strong aroma wards off pests
  • Rosemary - doubles as a culinary herb

Companion Planting Chart

Integrating pest-repelling plants into your garden can be strategic. Here's a simple chart to help you plan your garden layout:

Plant Companion Notes
Lavender Roses, Fruit Trees Deters greenfly and attracts pollinators
Mint Carrots, Cabbage Best grown in pots to prevent spreading
Rosemary Beans, Carrots Attracts bees, deters greenfly

Additional Tips for Managing Greenfly

Aside from planting deterrents, there are other strategies you can employ. Regularly inspect plants and remove visible greenfly by hand or with a strong jet of water. Encouraging natural predators like ladybirds can also help manage greenfly populations effectively.

  • Inspect plants regularly for early signs
  • Use water jets to dislodge pests
  • Encourage natural predators like ladybirds

Frequently Asked Questions

Do these plants repel other pests as well?

Yes, many of these plants can repel other pests. For example, lavender and rosemary can deter mosquitoes and other insects.

How often should I water these plants?

Most of these herbs need moderate watering. Ensure the soil is well-drained, and water them when the top inch of soil feels dry.

Can these plants survive the UK winter?

Yes, rosemary and lavender are hardy and can survive UK winters. Mint may die back but will often regrow in spring.

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