Winston Churchill once planned to grow tea for the British war effort
In short: While 165 million cups of tea are consumed daily in the UK, few realize that domestic production was once a matter of national security. From Himalayan origins to backyard pots, the journey of Camellia sinensis reveals how a simple brew became a resilient staple of the British psyche.
The tea plant, Camellia sinensis (the Chinese camellia), is remarkably hardy. Native to regions like the Himalayas where it grows above the cloud line, it can tolerate temperatures as low as -10C (14F). In the UK, it thrives in acid or lime-free soil and is currently grown commercially in locations such as Tregothnan in Cornwall. For home gardeners, a south-west facing wall or a cold greenhouse provides the ideal microclimate to avoid frost damage while maximizing sunlight.
History shows how deeply ingrained tea is in British culture; it accounts for approximately 40% of all fluids consumed in the UK daily. This cultural weight was so significant that during wartime, Winston Churchill formulated plans to establish domestic tea cultivation to protect supplies from enemy U-boats. Although these plans were never executed due to shifting circumstances, they highlighted the plant's strategic importance and its viability for UK soil.
Cultivating your own tea requires specific techniques to preserve quality. For green tea, one must pluck two leaves and a bud from a 'flush' of fresh growth. The process involves steaming the leaves for 1-2 minutes until they turn olive green, rinsing them in cold water to stop oxidation, and drying them at 110C for 10-12 minutes. For herbal varieties like Lemon Verbena, the method is simpler: tearing the leaves releases citrus oils before infusing them in boiling water for 4-5 minutes.
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Sources
- Summary by Intellect · source: Grow your own tea
- Also: Grow your own cup of tea / RHS
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