Slow Worm
Garden Wildlife
Slow worms are legless lizards, not snakes, and are quiet, valuable residents of warm, sheltered gardens. They eat slugs, snails and small invertebrates, often around compost heaps and dense vegetation. They are protected, so should never be harmed or deliberately handled. Their presence rewards a garden that keeps safe, undisturbed ground-level habitat.
How to identify it
A slow worm is usually 30-50 cm long, smooth and shiny, coloured bronze, brown, grey or dark, with a blunt head and eyelids that blink. Males are often plainer, while females may show darker sides or a central stripe. Young can be darker with striking stripes. They give birth to live young after eggs develop inside the female. Unlike snakes, slow worms can shed part of their tail if threatened.
How it helps your garden
Slow worms eat slugs, snails, worms, insects and larvae, helping reduce some soil-surface pests around vegetables and ornamentals. They hunt within cover rather than openly, complementing frogs, toads, ground beetles and rove beetles. Their value is also ecological: a slow worm indicates that the garden offers connected, pesticide-free shelter for wildlife at several levels.
How to attract it
Keep a warm compost heap, log piles, leaf litter, long grass, stones and dense planting, with sunny basking edges beside shade. Place a flat piece of corrugated material or a board in a quiet spot for shelter, then lift it only occasionally and gently. Create connected habitat with neighbours, grow RHS Plants for Pollinators, and avoid pesticides, slug pellets and unnecessary disturbance.
Tips
Slow worms are protected: never harm, trap or relocate one without appropriate advice. Check compost heaps, grass piles and coverings before moving them. If you find one, replace its shelter quietly and keep pets away. A photograph from a distance is the best way to enjoy it.
Slow Worm: frequently asked questions
How does slow worm help the garden?
Slow worms eat slugs, snails, worms, insects and larvae, helping reduce some soil-surface pests around vegetables and ornamentals.
How do I attract slow worm to my garden?
Keep a warm compost heap, log piles, leaf litter, long grass, stones and dense planting, with sunny basking edges beside shade.
How do I identify slow worm?
A slow worm is usually 30-50 cm long, smooth and shiny, coloured bronze, brown, grey or dark, with a blunt head and eyelids that blink.
General guidance for encouraging wildlife in UK gardens. Page updated 18 Sep 2026.