A kind, elderly lady in my neighborhood gave me a few Watsonia corms from her garden last summer. They're blooming now and are kind of great...about 3 feet tall, white flowers, and very fragrant. A quick search led me to Watsonia marginata, but the flowers on W. marginata seems much more densely packed than this one. Another suggestion that came up was Watsonia borbonica and the Wiki mentions that a selection called 'Ardern's White' has been grown in southern California for many years. So...any ideas on how to identify this plant?