Hostas are the 39go to39 plant for shady borders or in pots on shaded patios hosta sieboldiana var elegans is a worthy rhs award of garden merit holder due to it39s many features the giant blue hosta has ridged blue47green foliage which forms a backdrop to the pale lilac bell shaped flowers that appear in the summer on stems above the foliage hostas will thrive on both dry or damp shaded areas height 100cm 40393441 spread 120cm 40483441 culinary informatio