This section is from "The Horticulturist, And Journal Of Rural Art And Rural Taste", by P. Barry, A. J. Downing, J. Jay Smith, Peter B. Mead, F. W. Woodward, Henry T. Williams. Also available from Amazon: Horticulturist and Journal of Rural Art and Rural Taste.
Coleman's Rural World says that many persons are disappointed because their roses do not bloom constantly all summer, expecting from their title of Perpetual that they should do so.
Now, the class of roses called Hybrid Perpetual, or Remontante, is not exactly rightly named - that is, they do not bloom perpetually, but only at intervals. They bloom full in June, and then give a few scattering blooms along during the summer, and a good display again in Sept., doing better or worse, according as they are illy or liberally treated. This class, however, possesses the most brilliant colors, largest sized flowers, and fullest and finest shapes, and is deservedly very popular. But the true and real ever-blooming roses belong to those classes usually called tender roses - the Bengal or China, Tea, Bourbon and Noisette; these, though more tender, and less robust than the other classes, are not absolutely tender, but, in our latitude, by selecting the hardier varieties, may easily be preserved through the winters by necessary protection.
The simplest and surest method of protecting these classes of roses, is to peg them close to the surface of the ground, then cover with a few inches of coarse litter. Strawy stable manure is best, in our opinion. Throw on a little soil to keep it in place, and do not fail to cover the crown of the plant. Even if such manure is drawn up around their stems six or nine inches high, the roots and lower branches are saved; and if the tops get killed, they can be cut down, and they will bloom as freely as though all the top had been saved. This latter plan can only be adopted where the plants stand closely together in beds, which, indeed, is the most effective way to grow these, as well as the Remontante roses. Beds should be prepared exclusively for their benefit, and if the soil is a clay loam, well rotted manure may be added, and the beds spaded deeply, raising the surface of the bed a few inches above the natural level of the ground.
The plants of these dwarf-growing varieties may be distributed about three feet apart over the beds, and a vigorous growth should be kept up by clean culture, stirring the soil often, top-dressing and digging in annually.
The following would comprise a dozen good varieties for such a bed; some one would choose other varieties, doubtless, but these are believed to be as good as any.
Hermosa, pink; Duchess de Thuringe, waxy, clear white; Gels, creamy white; Gloire de Dijon, blush and yellow; Eugene Beauharnais, deep crimson; Madame Breon, rosy crimson; Bougere, bronzed rose: Amie Vibert, pure white; Daily Pink, a profuse bloomer; Agrippina, rich velvety crimson; Triomphe de Luxembourg, salmon buff; Saffrano, fawn color shaded rose.