The Hedgehog Preservation Society has issued a critical warning to gardeners: failing to manage garden netting and leaving out milk can be deadly for hedgehogs, especially during summer heatwaves.
Netting: A Hidden Danger
Hedgehogs are beloved for their nocturnal slug-hunting, but garden netting used to protect crops can entangle and kill them. The society advises rolling up tennis and other nets well above ground when not in use. Pea netting should be kept 22-30cm (9-12 inches) off the ground so hedgehogs can pass safely underneath. Even log edging can trap legs in the gaps between logs.
Clean as You Go
When tidying the garden, take care moving piles of leaves and rubbish, as these are ideal nesting spots. Hedgehogs are inquisitive and may get their heads stuck in tins, yoghurt pots, or plastic cups. Always cut the plastic rings of four- and six-pack holders and elastic on facemasks. Dispose of litter properly to prevent unnecessary deaths.
Never Leave Milk Out
Despite the heat, never offer milk to hedgehogs—it upsets their stomachs. Instead, provide a reliable water source. The society stresses that milk can be fatal, regardless of how hot it gets or if hoglets are present.
Pesticide Risks
Slug pellets are poisonous and should not be used. Since April 2022, metaldehyde slug pellets have been illegal in the UK. If absolutely necessary, place pellets in a pipe or under a slate inaccessible to hedgehogs, and remove dead slugs daily. Use other garden pesticides sparingly, or not at all, as they can sicken or kill wildlife.
Feeding Hedgehogs Safely
Hedgehogs eat invertebrates like beetles, caterpillars, earthworms, slugs, and insects. They may also scavenge small vertebrates. Many people put out meat-based pet food as a supplement, but always ensure a dish of water is available, especially in summer or extreme weather. Clean food dishes each morning with warm soapy water or disinfectant, rinse thoroughly, and air-dry completely before refilling. Use separate brushes and wear rubber gloves, washing hands afterwards.
