
506: Garden wildlife care for heatwaves: dahlias, cinnabar moths, and more
From Gardening with the RHS by Royal Horticultural Society
August 6, 2026 · 34 min
About this episode
The episode discusses how to support garden wildlife during heatwaves, featuring insights on dahlias and the cinnabar moth.
As we experience one of the most extreme summers on record, how can we help our garden wildlife cope with the heat? RHS Science and Horticulture Editor Olivia Drake explains why ornamental dahlias can be an excellent late summer food source for pollinators, while RHS entomologist Josie Stuart introduces us to the striking cinnabar moth and its close relationship with drought-resistant ragwort. We also visit Where Magic Grows, a new family-friendly immersive exhibition at Leeds’ Thackeray Museum of Medicine, exploring the connections between plants, folklore and medicine, in collaboration with the RHS. Plus, we answer some of your top gardening questions of the week. Host: Gareth Richards Producers: Dan Cocker, Poppy Waring Contributors: Olivia Drake, Josie Stuart, Jack Gann, Holly Tomlinson Links: Dahlias for pollinators Exhibition: Where Magic Grows Lavendars Plums Grey Water Plants mentioned: Dahlia merckii https://www.rhs.org.uk/plants/5296/dahlia-merckii-b/details Dahlia 'Tangerine Gem' https://www.rhs.org.uk/plants/510690/dahlia-tangerine-gem-sin/details Dahlia australis https://www.rhs.org.uk/plants/181404/dahlia-australis/details Dahlia…
People in this episode
Host: Gareth Richards
Guests: Olivia Drake, Josie Stuart
Topics covered
- garden wildlife
- heatwaves
- pollinators
- dahlias
- cinnabar moths
- exhibition
- gardening questions
Keywords
- garden wildlife
- heatwaves
- dahlias
- cinnabar moths
- pollinators
- gardening questions
- exhibition
Mentioned in this episode
Organizations: Royal Horticultural Society
Books & works: Where Magic Grows
Places: Leeds
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