-ON ANNUALS AND BIENNIALS. 



223 



whilst the lower one is white. These are suitable for growing 

 in large patches, sowing the seed in March, and thinning the 

 seedlings to a distance of 3in. 



CoLLOMiA cocciNEA is a showv border plant, varying in 

 height from i2in. to i8in., and producing its bright scarlet 

 flowers during June, July, and August. It is a useful bee- 

 plant, and in light warm soils it sows itself every year, the 

 plants so obtained being quite equal to the cultivated ones. 



Convolvulus tricolor (C. minor) (Dwarf Garden Con- 

 volvulus) is a well-known plant, ift. high, bearing numerous 

 large richly-coloured flowers, which are white, with a blue limb 

 and a yellowish throat. There are several varieties with white, 

 rose, crimson, and blue flowers ; 

 these are fine bedding plants 

 and are also useful when grown 

 in clumps in the border. They 

 require a good warm soil, and 

 should be kept in a medium 

 moist condition. 



Coreopsis is a genus con- 

 taining several annuals which 

 are largely grown for summer 

 decoration, under the name of 

 Calliopsis ; they are very grace- 

 ful border plants, supplying, 

 during summer an abundance 

 of elegant showy flowers, which 

 are greatly appreciated for vases 

 and bouquets. They thrive 

 almost anywhere, even in town 

 gardens; and the bright colours 

 of their flowers render them 

 objects of remarkable beauty 

 and general garden favourites. 

 Coreopsis Drummoiidi (Fig. 118) is a lovely plant for beds 

 and borders ; it has golden-yellow^ flow^ers, with a rich crimson- 

 brown ring surroundmg the eye ; it is a much-branched species, 

 growdng iSin. in height, and flowering in July. Coreopsis 

 tinctoria, also known as C. bicolor, is a slender annual, growing 

 to a height of 2ft., and opening its flow^ers in June ; they 

 are yellow, wdth a crimson-browm blotch in the centre. Several 

 varieties, difl'ering in the colour of their flowers, are now^ 

 grown, the best of which is undoubtedly na?ia. It is very 

 eflective for bedding purposes, lasting for a long time in 

 blossom. The folio \ving also deserve a place in the gar- 

 den : coronata, a good border plant, iSin. high, with a rich 

 yellow centre, spotted with brownish-crimson, flowers in July ; 



