Hello, I assume that the "multiflorum forms" are very close the the original Hyacinthus orientalis. This species has widely naturalised here by seeds and can be found readily in old gardens. I especially recommend the white form 'albilus' which flowers about a month earlier than the species. see http://bulbargence.com/m_catalogue/index.php/… Kind greetings Lauw de Jager Bulb'Argence South of France badly suffering from an extended drought!! -----Original Message----- I also have some mulitflorum types in another part of the garden that have multiplied very slowly over a longer period of time. They produce a few small spikes per bulbs.