It is beyond doubt a great beauty. I do not know if your clone is a natural species or of hybrid origin as you have suggested that your plant is from Japan. Telos Rare Bulbs has recently put Habranthus coeruleus on offer but bulbs were sold quickly. Habranthus coeruleus is already extinct in its natural habitats in the La Plata Province in eastern Argentina but cultivated materials are available for sale now and then. Please check with your supplier the identity of your bulbs.