Hello Sujit I don't know the correct procedure, but with Zephyranthes and Habranthus I leave them until they have developed a bulb. Usually a couple of months, after which I transplant them. Also as they grow, the roots get more tangled, so transplanting them when they are relatively small, gives the roots space. More than anything, it is to keep them fed and growing. Habranthus tubispathus will go dormant in summer, start growing in autumn, although yours are too small to go dormant and will probably continue to grow through their first season. The Z. drummondii develops a black bulb the size of a tennis ball eventually! And their scent is gorgeous. Ina On 26/04/2012 11:36 a.m., Sujit Hart wrote: > > > 1. Habranthus tubispathus: > > > 4. Zephyranthus drummondii: 5