It seems I was wrong about how sunflowers transport their water to the tip of the plant. I have just read that science doesn’t really know how a tree transports water from the soil to the crowns of trees. Ask yourself the simple question I forgot to ask: how does the world famous redwood called Hyperion get water to its crown 115 m above the ground? It must be properly hydrated given that it’s over 900 years old.
Curious to see a redwood? Here’s a website dedicated to the redwoods of the British Isles.