Pyrethrums are much used in English gardens in combination with Campanulas, Delphiniums and so forth, and make a good foreground for such plants. They grow much more luxuriantly in England however than they do with us, and it would not be well to rely too much upon their cooperation for effects in the common sense garden. Plant them in front of Canterbury Bells, or Larkspur, and the yellow Pyrethrums make a good foreground for White Lilies. They need much moisture and should be kept well watered, and in dry seasons mulched with manure. The single varieties are like Daisies in form, but come in many colours such as crimson, pink, white and yellow; and the single varieties are the best ones for a small garden. The double varieties are more like Chrysanthemums, and as they bloom in June their form seems a little bit incongruous and affected in a modest enclosure. Certain seedsmen of England have much improved Pyrethrums of late years and it is to them that we owe the large range of colour. The best colours to use for a small garden in combination with Lilies or Campanula or Delphinium are yellow and white.
The flowers are borne most profusely in June, and if the bushes are well cut down just as the bloom begins to wane a good second crop will appear in the early Autumn.