Sundry trivial facts about sweet peas:
Sweet peas come in a very wide range of colours, but not yellow. Early expectations of being able to breed a yellow sweet pea by conventional means were already fading rapidly by 1915.
Sweet pea flowers naturally self pollinate while still in bud. This means that the colour and scent of the flowers are essentially redundant as the flower has no need to attract insects or other pollinators.
By 1913 about 1700 acres of sweet peas were being grown in California to meet the annual demand for some 450 tons of seed, about half of which went to Europe, mostly to England.
Much early work in genetics was done at Cambridge University, using sweet peas as the subject.
~ http://www.lathyrus.com/general/trivia.htm ~
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