Royal Botanic Gardens, Kew announced on 24 September 2026 that an Agave montana near the Davies Alpine House in Kew Gardens’ Rock Garden in London is nearing its first flowering. According to Kew, the species is native to mountainous habitats in north-eastern Mexico, and this specimen was planted about 20 years ago.
Kew said the plant has produced an asparagus-like flower stalk and was more than two metres tall at the time of the announcement. The stalk is growing by about 10 centimetres a day, a sign Kew described as the final life stage of a monocarpic plant, which dies after a single reproductive cycle.
The main management task is pollination for seed production. Kew’s Alpine and Rock Garden team said it will continue monitoring the plant as flowering progresses, and that trained horticulturists can hand-pollinate it with brushes if pollen from another flowering specimen is obtained.
Kew linked the case to climate-adaptive garden management. Thomas Freeth, Kew’s Head of Collection Management, said recent weather conditions in London contributed to the flowering, and described the species as needing little watering, tolerating heat, and withstanding cold, wet winters.
From a garden-management perspective, the announcement shows that public botanic gardens are assessing not only display value but also water use, heat tolerance, winter resilience, and propagation potential. Kew said some flowers will be preserved in its Herbarium and Spirit Collections.
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