Hello Aad Holland would not be the easiest place to grow these. As Alberto says, some are summer dormant and some are winter dormant. However, I have found that I transplant when it suits me except in spring, and autumn when some of these are in full growth. Most of these are such easy bulbs. For myself, the biggest problem is Stagonospora. Most of mine I keep on the dry side. Have been transplanting a lot of mine over the last few months. They need excellent drainage, so am planting them into a mix of3/4 pumice, 1/4 potting mix. Are you the Aad van Beek on Facebook? Ina Ina Crossley Auckland New Zealand zone 10a On 15/10/2013 11:27 p.m., Aad van Beek wrote: > Is now a good time to replant the zephyranthes or is spring a better moment? Most of the leaves turn yellow now.