Aphids may be tiny, but they can cause big problems in the garden. These sap-sucking pests cluster on stems, leaves, and flower buds, weakening plants and sometimes spreading disease. If you’re looking for a natural way to discourage them, a few strategically placed ginger and lemongrass plants may help make your garden less inviting to these unwanted visitors.

Why Ginger May Help Keep Aphids Away

Ginger in a plastic pot
Penpak S.//Getty Images

Ginger is a flavorful addition to teas, baked goods, and stir-fries—and it shines in comforting dishes like Ginger Garlic Chicken Ramen. When you grow your own, it may also pull double duty by helping make your garden less inviting to aphids.

Research has found that compounds in ginger can be harmful to certain aphid species, making it an interesting option for gardeners looking to reduce pest pressure naturally. While scientists have studied ginger extracts more than live ginger plants growing in garden beds, its strong aroma may help contribute to a more pest-resistant growing space.

As a bonus, ginger’s lush green foliage adds texture and interest to the garden. Some gardeners also make homemade ginger sprays by blending ginger and water, straining out the solids, and then spraying it on the plants.

Lemongrass Is Useful, Too

Pictures of Tanaman serai or lemongrass (Cymbopogon citratus) on the garden. it is one of the plants of the grasses that are used as seasoning and herbal remedies. Commonly known as citronella grass.
Irfani Kurniawati//Getty Images

With its fresh citrus scent and striking grassy foliage, lemongrass earns its place in both the kitchen and the garden. The plant contains citronella-related compounds that are known to repel some insects, and many gardeners grow it as part of a broader natural pest-management strategy.

Lemongrass also adds height, movement, and fragrance to garden beds while helping create a more diverse planting environment.

Other Natural Ways to Control Aphids in Your Garden

If aphids have already moved in, these simple methods can help keep their numbers under control:

  • Spray plants with a strong stream of water to knock aphids off leaves and stems.
  • Prune away heavily infested leaves or shoots.
  • Remove small clusters by hand if the infestation is limited.
  • Encourage beneficial insects such as ladybugs, lacewings, and parasitic wasps, which naturally feed on aphids.
  • Avoid overfertilizing plants, since excessive new growth can attract aphids.

Aphids can be stubborn, but combining companion plants with a few simple control methods can help keep your garden healthy without relying on harsh chemical treatments.