Dorset,
United Kingdom 
Please would someone tell me about cordydalis plants. I would like to plant lots of bright blue ones also some pink. I see from reading a little of the blogs that they flower in the spring and then die down and come back the following spring. I thought they were a all the summer plant. I cannot take photos but like looking at other peoples. I live in the south of england and cannot see any in the garden centres yet.
12 Feb, 2011
Answers
What Moon grower says is 95% correct as most are bulbous but, there are just one or two fibrous rooted varieties that are said to be evergreen, though not in our garden! We have the yellow C. cheilanthifolia, the Fern-Leafed Corydailis, which has attractive bronze coloured leaves in summer. As it goes into autumn the foliage becomes untidy with thje leaves dying away in winter.
12 Feb, 2011
Corydalis are bulbs and should have been bought and planted in autumn to flower this spring. You can also start them from seed but it takes a few years for the bulbs to get to flowering size. They die down completely once they have finished flowering.
12 Feb, 2011