TALL AND MEDIUM-SIZED PLANTS 23 



flourish on shaly slopes. There is a handsome red- 

 flowered variety of this plant. 



Gypsophila. — G. paniculata, such a favourite in the 

 border and for cutting, is best planted on a bank where 

 its billowy maze of flower-sprays may display its beauty 

 to the best advantage. 



Helianthus. — Perennial Sunflower. These are most 

 attractive in the autumn when they light up the landscape 

 with their sheaves of golden flowers. Among the best 

 are H. latiflorus, H. rigidus Miss Mellish, H. multiflorus 

 and H. giganteus. 



Helleborus. — Christmas and Lenten Roses. In a par- 

 tially-shaded site, in deep cool soil where herbage is not 

 permitted to over-run them, these should do well. Such 

 a spot is sometimes to be found at the foot of a high lane- 

 bank. Of the H. niger section H. n. altifolius is the 

 strongest grower, while the Lenten Roses, which are 

 hybrids of H. olympicus, are all vigorous. These latter 

 range in colour from pure white to reddish purple, many 

 bekig prettily spotted with rose on a white ground. 

 Some of the other species are interesting and will repay 

 naturalising. 



Hemerocallis. — Day Lily. A fine race of plants that 

 prefers a rather moist soil. The strongest growers are 

 H. fulva and the newer H. aurantiaca major. Other 

 pleasing species are : H. jlava, H. Dumortieri and H. 

 Middendorfii. 



Heracleum. — Giant Cow Parsnip. H. giganteum is 

 eminently fitted for the roughest and most congested 

 sites, since it will quickly assert its superior vigour 

 against the most rapacious neighbours and throw up its 

 great white flower-umbel to a height of twelve feet. Its 

 foliage is large and handsomely cut, but it should not be 

 planted where it may incommode less sturdy exotics. 



Hesperis. — Rocket. The single form of this plant is 

 worth massing here and there. 



