The piece opens with a litany of firsts — old lady moths, vestal moths, blood-veins, hummingbird hawk-moths feeding summer-long instead of passing through, painted ladies in a once-a-decade migration year. Each sighting is a data point dressed in wonder. The southerly winds and heatwaves doing the delivering get a single factual sentence, no editorial hand-wringing. Then the turn: a rosemary beetle, Chrysolina americana, gleaming purple-and-green like lustreware, sitting among the herbs. The writer knows immediately what it means — a Mediterranean species with no UK predators, capable of stripping lavender, sage, thyme, and rosemary to bare sticks. First found living outdoors in Britain in 1994, now spreading north as winters soften. The RHS is monitoring sightings. The advice is to hand-pick them and, where possible, enjoy their beauty. That tension — aesthetic delight versus ecological threat — is the engine of the whole piece. What makes this work is the observational density. The beetles mating at branch tips, preferring lavender seedheads over flowers. Their drop-and-vanish defence mechanism. The dull grey larvae with longitudinal stripes. These aren't decorative details — they're field notes with narrative pace. The writer propagated all their own herbs, which raises the genuine puzzle of how a beetle that can't fly far arrived at all. The closing paragraph widens the aperture: cinnamon bugs, seven-spot ladybirds, a garden snail in a sage leaf, a cabbage bug, a froghopper, red admirals on calendulas. It's an inventory that earns its length because every creature is precisely seen. The final line lands the climate note without underlining it — the rosemary beetles will only survive in this frost hollow if winter stays mild. This is the Country Diary column doing what it has done since 1906: micro-scale natural observation that accumulates into macro-scale testimony. The format constrains ambition — there's no room for argument or reportage — but within those constraints the writing is specific, unshowy, and genuinely knowledgeable. It belongs to a tradition of British nature writing that values noticing over narrating, and it does that job well. The piece also functions as a quiet advertisement for the anthology Under the Changing Skies, collecting the best of these columns from 2018-2024. As a standalone entry, it's a satisfying five-minute read that leaves you knowing more about rosemary beetles than you did, and thinking differently about what your garden tells you about the climate.
