I think I would like a favourite for every season but if I really have to choose it would be Tete e Tete Daffodils, they are such sturdy little things, so bright and cheerful and bring me great joy after the winter months, I now have lots. I have tried, and still have other Daffodils in the garden but they always seem to get damaged & beaten down by the wind & rain. I had one chocolate Cosmos in a pot for several years (with other plants). I decided to refresh the soil this year and found it had grown very large so I cut it in half, planted both halves up and now have two very vigorous plants with lots of blooms.