Botanical name is Lathyrus odoratus - odoratus means scented.
Purples, pinks, creams, salmons
March to November
Keep cool, always in water, and away from ripening fruit. Commercial sweet peas are treated after cutting to prolong their life; garden-cut ones may only last one or two days but florists' peas can last over a week.
In the language of flowers, sweet peas mean "delicate pleasures". Breeders are trying to develop a scented yellow sweet pea. The Lathyrus family has a naturally occurring yellow pea but it has no fragrance.