| Not sure what could be causing the die-back, unless perhaps some insect problem or rot underground. You might have to sacrifice the worst-looking one to dig up and see if there is a problem with the roots or anything else. To be honest, Daffodils don't really do well in Bris climate, though there may be folk who can get them to bloom - they are more for cool or temperate gardens. Some of the cool climate bulbs can be tricked into flowering once, by fridging them before planting for a few weeks, but you are unlikely to get a 2nd blooming. On the up side, there are plenty of warmer climate bulbs, both spring and summer flowering that will do well in Bris and the even better thing is that many don't need to get lifted and stored. It may be a bit late this year but sometimes you can rescue some marked-down bulbs at supermarkets etc or if not, make your plans well ahead next year. Just off the top of my head, some of the bulbs that do well in SEQ are Babiana, Sparaxis, Ixia, tritonia, Freesia, Gladiolus, Zephyranthes, Watsonia & Hippeastrum. Unfortunately you often have to be careful where you buy bulbs from too. They may have been too old, or have come from a cooler climate as well. Don't be put off, I'm sure you will have the garden of your dreams | 
