Below is an A-Z listed of every cultivar held in my collection. For each cultivar a scanned picture of the flower is matched with a similar scanned image of the corresponding foliage. Each cultivar is labelled correctly in accordance with the RHS Plantfinder as far as I am aware; however it is inevitable that some may be mislabelled.
This guide can be used to identify plants growing in your own gardens by mapping the flower and foliage.
Total number of cultivars in category I-P = 26