Creating a Garden for Butterflies, Caterpillars and Birds
- Steve Cook
- 3 days ago
- 3 min read
Why caterpillars are essential for a thriving wildlife garden
Growing butterfly-friendly plants is one part of creating a garden full of life. The other, often overlooked, piece of the puzzle is caterpillars.
Now, this doesn’t mean handing your garden over to hordes of leaf-munching, plant-crunching, green wriggling chaos. In reality, most caterpillars are not interested in your prized shrubs and perennials. They have their own preferred food sources — and without them, there would be no butterflies or moths.
Caterpillars are simply part of the process. And it’s a pretty remarkable one.
From caterpillar to butterfly
The transformation from caterpillar to butterfly or moth is one of nature’s great magic tricks — and a brilliant survival strategy.
In the UK, we have around 50 species of butterflies and roughly 2,500 species of moths. While butterflies get most of the attention, moths quietly carry out a huge amount of pollination during the evening and overnight — largely unnoticed.
Except, perhaps, by bats, who are rather fond of them.
Creating space for wildlife
If you have the space, the ideal approach is to create a managed wild area within your garden.
This doesn’t have to be large — even a small patch can make a real difference. A mix of wildflowers and caterpillar-friendly plants will encourage them away from your more formal planting areas, helping to strike a balance.
Create the right conditions, and you’ll start to see the benefits:
More butterflies and moths
Increased pollination
More birds visiting the garden
Birds, in particular, are big beneficiaries — many species rely on caterpillars as a key food source, especially when feeding their young.
Plants that support caterpillars
One of the best plants for caterpillars might surprise you.
Stinging nettles (Urtica dioica)
Often seen as a nuisance, nettles are actually one of the most important plants for wildlife.
They support a wide range of butterfly species, including:
Peacock
Comma
Painted Lady
Small Tortoiseshell
Red Admiral
They’re also incredibly nutrient-rich and can be used to make an effective (if slightly pungent) organic liquid feed for the garden.
Not the most glamorous plant — but one of the most valuable.
Other caterpillar-friendly plants
If you’re looking to broaden your planting, there are plenty of options:
Sorrel (Rumex acetosa)
Dock (Rumex obtusifolius)
Hops (Humulus lupulus)
Bedstraws (Galium)
Madder (Rubia)
Foxgloves (Digitalis)
Mint (Mentha)
Dandelions (Taraxacum officinale)
Wild grasses are also important — especially when left to grow naturally within a meadow area.
Supporting the full life cycle
Caterpillars need more than just food. They also need safe places to pupate (form their chrysalis).
This is where shrubs, long grass and slightly undisturbed areas come into their own. In most cases, they’ll find suitable spots themselves — but a less “over-managed” garden makes life much easier for them.
Adding a small water feature can also increase biodiversity, attracting dragonflies, damselflies and other beneficial species.
Don’t forget the birds
Planting for wildlife doesn’t stop with insects.
Berry-producing trees and shrubs are invaluable for birds, particularly in autumn and winter. Good options include:
Amelanchier (Juneberry)
Sorbus (Mountain Ash)
Ribes (currants)
Pyracantha
Cotoneaster
Holly (Ilex)
Berberis
Hawthorn (Crataegus)
Elderberry
A quick note of caution: some berries are highly toxic to humans. Always be absolutely certain before eating anything from the garden — birds have a much higher tolerance than we do.
Final thoughts
This is a subject you could go much deeper into, but the principle is simple:
Create the right environment, and wildlife will find its way in.
It doesn’t need to be perfect. It doesn’t need to be large. Just a bit of thought, a bit of variety, and a willingness to let parts of the garden be a little less controlled.
As the saying goes — if you build it, they will come.
