Both for practical and artistic reasons, the beds should not be too small; they should not be so small that, when filled with plants, they should appear like spots of colour, nor be so large that any part of them cannot be easily reached by a rake. Nor should the shapes of the beds be too angular to accommodate the plants well. In Sir Gardner Wilkinson's book on "Colour" (Murray, 1858, p. 372), he speaks of design and good form as the very _soul_ of a dressed garden; and the very permanence of the forms, which remain though successive series of plants be removed, calls for a good design. The shapes of the beds, as well as the colours of their contents, are taken cognisance of in estimating the general effect of a geometrical garden. This same accomplished author advises that there should always be a less formal garden beyond the geometrical one; the latter is, so to speak, an appurtenance of the house, a feature of the plateau upon which it stands, and no attempt should be made to combine the patterns of the geometrical with the beds or borders of the outer informal garden, such combination being specially ill-judged in the neighbourhood of bushes and winding paths.
Of the proper selection of flowers and the determination of the colours for harmonious combination in the geometrical beds, much that is contradictory has been preached, one gardener leaning to more formality than another. There is, however, a general agreement upon the necessity of having beds that will look fairly well at all seasons of the year, and an agreement as to the use of hardy flowers in these beds. Mr Robinson has some good advice to give upon this point ("English Flower Garden," p. 24): "The ugliest and most needless parterre (!) in England may be planted in the most beautiful way with hardy flowers alone." (Why "needless," then?) "Are we not all wrong in adopting one degree, so to say, of plant life as the only fitting one to lay before the house? Is it well to devote the flower-bed to one type of vegetation only--low herbaceous vegetation--be that hardy or tender?... We have been so long accustomed to leave flower-beds raw, and to put a number of plants out every year, forming flat surfaces of colour, that no one even thinks of the higher and better way of filling them. But surely it is worth considering whether it would not be right to fill the beds permanently, rather than to leave them in this naked or flat condition throughout the whole of the year.... If any place asks for permanent planting, it is the spot of ground immediately near the house; for no one can wish to see large, grave-like masses of soil frequently dug and disturbed near the windows, and few care for the result of all this, even when the ground is well covered during a good season." Again our author, on p. 95, states that "he has very decided notions as to arrangement of the various colours for summer bedding, which are that the whole shall be so commingled that one would be puzzled to determine what tint predominates in the entire arrangement." He would have a "glaucous" colour, that is, a light grey or whitish green. Such a colour never tires the eye, and harmonises with the tints of the landscape, "particularly of the lawn." This seems to be neutralising the effects of the flowers, and this primal consideration of the lawn is like scorning your picture for the sake of its frame!