I agree with Leo. In the summer when they are dormant, you can repot them at any time. Although I don't think you should leave the bulbs exposed without soil or something around them for too long. (I.e., after removing them from the 10 cm pots, put them into the new pot the same day.) After they have started growing, you can repot them into a larger pot if you take then entire 10-cm clump including soil and place it into the new pot and place soil below and around it, but keep the surface of the clump at the same level in the new pot. I have found it is better to repot already-growing plants early in their growing season so that they have most of the growing season to adjust to the new pot. And as others have said, try to disturb the roots as little as possible. I believe in your climate that Lachenalias will almost grow all by themselves with very little need for special care. I haven't tried growing them in the ground, but I think they would do very well here in Southern California as long as they are in a location that does not receive water during the summer. Isn't Portugal's climate similar to California's? --Lee Poulsen Pasadena, California, USA - USDA Zone 10a Latitude 34°N, Altitude 1150 ft/350 m On Dec 21, 2014, at 2:33 AM, Fernando Cecilio <email@example.com> wrote: > Greetings! > I have a few pots of seed grown Lachenalias (various species). > When would you advise me to do it? During dormancy or while in growth? > Any particular advice on these plants?