This section is from the book "The Gardener V2", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
This Poppy is near akin to the Papaver bracteatum, but differs from it in an important respect as regards its adaptation to ornamental purposes. It has the the showy orange-scarlet flowers of bracteatum on stems not quite half the height of that species. The foliage of both is alike, and handsome in character. An excellent plant for large rock-gardens, and for herbaceous borders of the showy description; in deep loam the flowers are produced for a couple of months or more, on end. Propagate by division of the roots, and by seeds. In dividing, let it be done in spring or early autumn - when done too late in autumn, the divisions are apt to rot; and let it be done with some care, and not too minutely. It usually seeds freely, and stock may be kept up by sowing a few seeds in anticipation of requirements, better than by division. The plants are kept in better health by being lifted and transplanted every two years.
 
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