I cannot now recall any perennial except the Cardinal Flower, which has blossoms of so brilliant a scarlet as Lychnis, or London Pride, growing tall and erect, with its bright colour. It is most effective when grown in large clumps.
Monkshood (Aconitum Napellus) grows four feet high, and has a beautiful blossom of rich blue growing in quite large clusters. The name must come from the resemblance each individual blossom bears to the capuchin of a monk. These plants should be grown under tall trees, for they cannot stand too strong sun, and will blossom very late in the autumn if protected by the trees from frost. I gathered them last year in November.
Phloxes, Rudbeckias, Monkshood, Valerian, Lychnis, Tritomas, Iris, Peonies and Veronica are best raised, not from seed, but by buying the plants, and then after a time, as I have said before, dividing them. For instance, take a fine large plant of Phlox of some choice variety, divide all the roots and set out each one separately. From one plant you may, in two years' time, get twenty splendid ones, and the same with the other varieties I have mentioned.
Rudbeckias, of the Golden Glow variety, grow from six to eight feet high, and must be staked, or when heavy with blossoms they will blow down or be beaten down by the rain. Each plant will bear quantities of long-stemmed double yellow blossoms, which resemble a double Dahlia. These will keep nearly a week in water. When the plant has finished blossoming, cut down the tops, and in October there will be a second crop of blossoms just above the ground.
The Golden Glow should be divided every other year, and in this way it is even more remunerative than the Phlox. I started with fifty plants, and think it will soon be possible to have a farm of them.