Group 1 - The mythological origin of Hyacinthus traces back to Greek mythology, where his beauty attracted Apollo, leading to his tragic death [2] - Hyacinthus was one of the earliest plants cultivated by humans, with records of its cultivation dating back to ancient Greece and Rome [2] - The flower's strong fragrance compared to other bulbous plants blooming in late winter and early spring contributes to its popularity [2] Group 2 - Early cultivation of Hyacinthus saw flowers distributed sparsely on the stalk, but by the 18th century, the number of flowers increased, leading to the familiar dense growth pattern [3] - By 1767, approximately 590 varieties of Hyacinthus had been successfully bred, with significant interest surpassing that of tulips and daffodils [3] - The production of Hyacinthus shifted to the Netherlands in the late 19th century, with Berlin's flower fields producing 4.5 million bulbs annually by 1815 [3] Group 3 - Hyacinthus originates from the Eastern Mediterranean region and is a perennial bulbous plant with an average height of about 30 centimeters [5] - It thrives in open, sunny environments and comes in various colors, including blue-purple, white, pale yellow, pink, and nearly red varieties [5]