Well, here is my list of favorite blue flowers. I had a phase where I was on the lookout for any "true blue" flowers, so even though some flowers have slight amounts of purplishness of violet in them and still seem blue, I became something of a purist in my search. Even so, some of the flowers in his list still may have traces of lavender or purple or pale reddishness in them, but they made the list because they were so compelling. At the end I've added another list for a related color that has so few flowers of that shade that I doubt Mary Sue will even need to bother to have a Topic of the Week for it. Nevertheless, the color is so stunning that it merits a small list somewhere for reference' sake. That would be the color I'm going to call teal. Also known as cyan or blue-green, and aqua or aquamarine at the green end of its range and turquoise at the blue end of its range. True blue: Tecophilaea cyanocrocus What can I say? Of all the blue flowers I've grown this one reigns supreme. Not only is it the bluest flower I've grown, it is also the most intense hue of blue I've grown. Luckily, it grows almost without care in my southern California climate. I've mentioned before that I can grow it basically exactly like I do Cape bulbs from South Africa. Ipheion 'Rolf Fiedler' This is very easy to grow and such nice shade of blue. I think it's the best colored of the blue Ipheion/ I. uniflorum cultivars. At peak bloom a pot will be covered with creamy sky blue flowers. Bearded Iris - various cultivars, all shades of blue I can't think of any named cultivars at the moment, but there are many. Some may not be completely true blue, but they're close enough and come in shades from dark to very pale. Lycoris sprengeri buds I had to put this in here after flowering these things. The blue is so electric that you can't help but notice it. And when it is in bud, the bluer bulbs look almost completely neon blue. If someone can breed a pure blue one of these, it will have to be placed on the list of top 5 blue flowers of all time. Aristea ecklonii I love this in flower under trees when it is grown well en masse. Lots of small sparkling blue stars amidst a deep green field of leaves. Cypella coelestis (syn. Phalocallis coelestis, Cypella plumbea) This one isn't completely true blue, but is such a ghostly stunning color of sky blue with a hint of lavender when seen in person that it has to go on the list. Nemastylis geminiflora I couldn't believe that a native to the central Texas hill country where I grew up could be so pretty and so blue. I don't know why I never saw this until last summer. Scilla lingulata The strain that Harold Koopowitz brought to one of Cathy Craig's get-togethers was a wonderful shade of blue. I guess the blueness can vary fairly widely. Zephyra elegans I've never seen this one in person, but a photo I saw made me want to grow this one. Meconopsis betonicifolia "Himalayan Blue Poppy" I don't think this is a geophyte. However, after finally getting to see an entire bed of these in bloom at Butchard Gardens in Victoria, British Columbia, Canada, it also must go on the list of top 5 blue flowers of all time. Why, oh why must it require such a cool summertime climate to grow in...? Delphinium I don't know the species, and I don't know if it's a geophyte, but I know that some Delphiniums are geophytes, so I decided to list this because the plants I bought from an ordinary nursery were so true blue that it has to go on some list of true blue flowers. Teal/Cyan/Aquamarine/Blue-green/Turquoise: Lachenalia viridiflora A stunning color and a very showy Lachenalia. Ixia viridiflora Everyone just stops and stares at this Ixia when it is in bloom. I have trouble keeping this one going from year to year on an ongoing basis. Most people don't believe the above two bulbs' flowers are real or natural when they first view them. Most likely because they've never seen anything this color in nature, at least in the plant kingdom. None of the following are geophytes. But they're the only other flowers I've discovered so far that fall within this color range. They all look unreal when you first see them. Puya alpestris and Puya berteroniana I've only personally seen these in photographs. But I have plants now, so I just have to wait until I get them to flower. Strongylodon macrobotrys Also known as the Jade Vine. A true tropical vine and will not survive temperatures below 40 deg. F. However, I finally saw one in bloom and it is truly a stunning looking flower. Huge racemes of large pea-shaped flowers hanging from the vines in the most unusual shade of teal green you've ever seen. Jane McGary has said the following: "Several gentians are this color, the most familiar being Gentiana glauca, a plant of high latitudes and altitudes." I've never seen the flowers nor photographs, but include it here to make a more complete listing. And finally a year ago while visiting Kew Gardens, I saw another teal green flower in the famous main tropical greenhouse. It appeared to me to be in the same family as what I've known as "Shrimp Plants" (Justicia brandegeana and Pachystachys lutea). I've seen the red and yellow flowered versions before. But try as I could, I could not find a label or anything identifying it. I do have a photo of it, however. These are all I've been able to find in this color range. --Lee Poulsen Pasadena area, California, USDA Zone 9-10