How My Insect Hotel Brought Butterflies Back to My Garden

Three summers ago, I noticed something was missing from my garden. I could not name it at first, only feel it. The lavender hedge I had grown from cuttings was full and fragrant. The echinacea stood tall along the south-facing border. The buddleia had been cut hard in March and come back stronger than ever. And yet. Something was gone. It was not until my neighbour Dorothy remarked on it one July afternoon over the garden wall that I understood what. 'Where are all the butterflies, Margaret?' she said. And she was right. I had not seen a single peacock butterfly in three years. No red admirals. Barely a cabbage white. My garden, which my late husband Gerald used to call 'a butterfly pantry,' had fallen quite quiet.

I had tried what the gardening books suggested. I left a patch of nettles in the corner behind the compost heap. I planted more single-flowered dahlias. I stopped deadheading the sedums quite so early in autumn. A little more happened, but not much. A brimstone in May, a speckled wood along the shaded path in June, but the big, flamboyant peacocks and tortoiseshells that used to cluster on the buddleia in August? Gone. I began to wonder whether the problem was not food, but shelter.

A friend from my village gardening club, a woman who had been keeping a wildlife notebook for forty years, suggested I think about overwintering habitat. Butterflies like the peacock and the small tortoiseshell do not migrate. They hibernate here, right through winter, tucked into crevices in bark, behind loose fence panels, inside hollow stems. If there is nowhere safe and dry to spend the cold months, they cannot come back in spring because they never survived to come back. She pointed me toward insect hotels, which I had always thought of as a children's novelty, little more than a painted decoration. She put me right on that.

I ordered the Niteangel Natural Wooden Insect Hotel in early March, the same week the snowdrops were going over and the first crocuses were opening. It arrived flat-packed, which I will admit gave me a moment's pause, but it assembled in twenty minutes with nothing more than the enclosed wooden pegs and a light tap with my husband's old mallet. It is genuinely well made. The outer frame is pine, properly jointed at the corners. Inside, the chambers are packed with a mix of natural materials: bamboo tubes of varying diameter, pine cones, dried grass bundles, bark strips, and a block of drilled wood for solitary bees. It is about the size of a large hardback book. Compact enough to be unobtrusive, substantial enough to house a real community.

I mounted it on the east-facing fence, about a metre and a half off the ground, sheltered by the eaves of the garden shed. My gardening friend had been firm on this point: face it away from the midday sun, protect it from prevailing rain, put it somewhere still and quiet. Not in the middle of a busy border where you are forever brushing past it. I chose a spot beside the climbing rose 'Madame Alfred Carriere,' where the fence gets morning light and then sits in gentle shade through the afternoon.

By the second week of May, a pair of red-tailed bumblebees were investigating the bamboo tubes each morning. By the end of that same month, I saw the first peacock butterfly in three years.

What happened next I can only describe as gradual and then suddenly. April passed quietly. The hotel sat there, looking purposeful. I checked it each morning on my rounds with my tea, peering at it in the early light, seeing nothing, feeling slightly foolish. Then, the second week of May, a pair of red-tailed bumblebees began investigating the bamboo tubes. Not nesting, just looking, which is apparently quite normal. A few days later, I spotted a Common blue damselfly resting on the frame in the afternoon sun, which nearly stopped my heart, as I had not seen one in this garden in years. By the end of that same month, the peacock butterfly arrived. One, then two days later a second. I sat on the garden bench for a long time that morning and did not go inside.

By August of that first year, I had recorded in my own notebook: two peacock butterflies visiting the garden on multiple days, one small tortoiseshell, three species of solitary bee using the bamboo tubes (I could see the mud-stopped chambers by mid-June), a lacewing which roosted in the dried grass section, and a wren, of all things, who investigated the whole structure one November morning with great professional seriousness. The following spring, the peacocks came back earlier. Whether these are the same individuals or their offspring I cannot say with certainty, but my notebook shows first sighting moved from 28 May to 9 May between year one and year two. That feels significant to me.

I want to be fair about what this hotel is and what it is not. It is not magic. You cannot put it up in a sterile garden and expect visitors the next morning. It works because there was already food nearby, the lavender, the echinacea, the nettles in the corner. What it supplied was the missing piece: somewhere safe to rest, to shelter, to overwinter. Think of it like putting a bird feeder in a garden with no trees. The feeder alone is not enough, but a feeder with trees and shrubs nearby? That works. The insect hotel is the same logic applied to invertebrates. One thing worth knowing: the bamboo tubes eventually need replacing after a couple of seasons, as they accumulate parasites. This is easy to do, as replacement bamboo is inexpensive, and the wooden frame itself is holding up well after two years outdoors with nothing more than a brush of linseed oil each spring.

What I Would Tell You If We Were Sitting at My Kitchen Table

If you had asked me four years ago whether I would write earnestly about an insect hotel, I would have laughed. I thought they were for people who wanted to feel they were doing something without actually doing much. I was wrong, and I am glad a wiser gardener set me straight. What I have learned is that the garden you want, the one full of butterflies and bees and the particular still hum of a healthy summer afternoon, does not come from planting the right flowers alone. It comes from thinking about where creatures go when they are not feeding. Where they rest. Where they sleep through winter. Once you start thinking that way, a simple wooden box full of bamboo and pine cones stops looking like a novelty and starts looking like the most sensible thing you could add to a border. Buy it, put it up properly, and then be patient. Gardens reward patience more than almost anything else I know.