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with leaves like those below, but smaller, and have few or no jags on 

 their edges; each of the peduncles is terminated with single heads 

 of flowers, of a blue colour, having a dry, silvery, scaly calyx. 



It is a native of the south of Europe, flowering from July to 

 October. 



There is a variety with double flowers. 



Culture. — It is increased by sowing the seeds in the early spring, 

 on the borders where the earth is light : the plants when sufficiently 

 strong may, some of them, be removed into pots; l)ut they flower 

 best when left where sown. The double sort is best increased by 

 slipping the roots and planting them out either in the early autumn 

 or spring seasons; but in this Avay the roots should not be divided 

 into too small parts, as that prevents their sending up a sufllicient 

 number of stalks for flowering. 



These are very ornamental plants for the borders or clumps, 

 where sufficiently dry, warm, and protected, as they continue several 

 years. 



Some plants may likewise be preserved in pots, to set out in 

 assemblage with other potted plants. 



