Ants are abundant insects in many gardens and often cause concern, but they are usually at most a nuisance.

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An ant collecting honeydew from aphids. Credit: RHS/Mike Ballard.

Quick facts

Common name Ants
Scientific names Various, mainly Lasius, Myrmica and Formica species
Plants affected Ant nests frequently occur in lawns, flower pots, compost bins and among the roots of plants
Main symptoms Small heaps of fine soil on the surface above the nest; presence of ants
Most active April-October

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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.