This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
It cannot be said that the Dahlia occupies a prominent position in our markets as cut flowers, though there are types that are valuable for decorative work; the modern cactus varieties, with their long narrow petals, are useless, for general work, as they are much too soft and tender to pack or travel well. The older types, such as Glare of the Garden, Cochineal, Constance, etc, are still largely grown for cut-flower purposes because they are broader in the petal, and harder altogether, and still hold their own over the newly created soft and delicate types. Some of the decorative varieties of newer origin will no doubt supplant the older forms when they are better known.