The Fibonacci sequence in nature

When I saw this plant, ‘Fibonacci sequence’ popped into my head. I have heard of the term ‘Fibonacci sequence in nature,’ but know little about it. So I did some investigating. The Fibonacci sequence starts like this: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 and so on forever. Each number is the sum of the two numbers that precede it. 

It appears throughout nature from the design of shells, to the way tree branches grow out of trees, to the development of leaf veins, the pattern of seedheads, the positioning of flower petals (think roses), even the shape of tropical storms. It has been described as “the code of nature’ and runs through the cosmos – even appearing in spiral galaxies. Isn’t nature clever?

 

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Winter flowers

It was great to see the RHS garden coming to life last weekend. Not only were there snowdrops, but also daffodils, miniature cyclamen, winter aconite and dwarf crested iris. 

I managed to get a macro shot of a winter blooming camellia.fullsizeoutput_114

A red witch hazel.fullsizeoutput_117

Then there was this very strange one – Edgeworthia chrysantha ‘Grandiflora.’ An unusual looking flower, which is generally pest and disease free – according to the RHS. It originates from the Himalayas and was introduced in the 1850’s. It is tricky to cultivate, but produces fragrant blooms if successful.fullsizeoutput_10e

Finally – my abstract version of the red witch hazel.fullsizeoutput_10b