Colour advances have also been made in little Tagetes signata, a delightful cushion-forming plant with ferny leaves and small but abundant flowers which may be lemon, yellow or orange-red. Chrysanthemum parthenium (Matricaria eximia) is a pretty but not very permanent perennial which is almost invariably grown as a hardy annual, ft has finely divided leaves and dense sprays of white or yellow flowers which, in the cultivated varieties, are always double. Mesembryanthemum criniflorum is correctly known as Dorotheanthus bellidiformis, but it would be useless to look for that name in seed lists. No carpeter exceeds this in brilliance, the superficially daisy-like flowers embracing carmines and crimsons which seem almost artificial in their intensity as well as subtler shades of apricot and buff. It is half-hardy and needs to be sown at least twice for continuity. There are no problems with mignonette, an age-old favourite which can never be spectacular but is loved for its sweet perfume and makes a cool contrast to the gayer colours around. The showy monkey flowers or Mimulus with yellow or orange flowers splashed with pink or crimson are really short-lived perennials, but they are grown as half-hardy annuals and they like moist places. Molucella laevis is the graceful bells of Ireland or shell flower, much used by flower arrangers and so freely available. It is half-hardy and not very easy to germinate. Do not throw away the seed pans too quickly as late seedlings may appear long after most have been pricked out. The common bedding forget-me-nots are always grown as biennials and for best results seed should be purchased annually since self-sown seedlings quickly revert to type. Yet this is such a lovely plant that in wild places or where forget-me-nots are naturalised it is not necessary to have carefully selected garden cultivars and plants can be left to seed themselves freely. Nasturtiums, which are really cultivars of Tropaeolum majus, have been taught to carry their flowers above their leaves and some cultivars have been deprived of their slender nectar-filled spurs which seems to have little advantage unless it is held that bees spoil the flowers. More useful is a cultivar named 'Alaska' with heavily cream-variegated leaves. Nemesk seems to be attracting less attention, maybe because commercial producers of box plants like to market everything in bloom. There is no difficulty in getting nemesias into flower so early but it is fatal to success since the plants become starved and seldom grow away freely when planted out. Nemophila insignis, popularly known as baby blue eyes because of its light blue, white-centred flowers, continues to be sold unimproved, which is just as well since it is difficult to see what change could be advantageous to this charming little mat-forming hardy annual. A few efforts have been made to popularise Nicandra physaloides mainly on the score that it is supposed to keep flies away but it is a coarse and rather unattractive annual which has found few buyers.