This section is from the book "The Gardener V1", 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.
Summer-flowering subjects, such as Pyrethrums. Lupinus polyphyllus in variety, Delphiniums, early-flowering Phloxes, and others, if cleared of old flower-stems when these are getting over, will in most seasons throw up a second crop of flowers in autumn. Where these borders are regularly attended to throughout the summer - the borders being stirred with the hoe, plants tied up as they require it, and seed-vessels never allowed to form, - it is wonderful what a difference it makes in the enjoyability of these plants. Well-kept and well-managed herbaceous borders are a good feature in any garden, but under opposite conditions they are a perpetual eyesore. The great thing at present is to secure the late flowering of all plants possible. R. P. Brotherston.