Gardens comprise a medley of plants, from herbaceous perennials to shrubs, trees, annuals, biennials, bulbs, ferns and grasses. They look good on their own, but when planted in attractive groups they are even better. Selecting plants that form attractive partnerships with each other requires careful thought. For example, if they are flowering plants they must create their displays at the same time. Equally, one plant should not dominate and eventually suffocate its neighbour. There are many exciting combinations of plants and by choosing them carefully 'mix-and-match' displays can be created throughout the year.

In spring
- Plant the bulbous, blue-flowered Muscari armeniacum (grape hyacinth) in large drifts under the deciduous, slow-growing tree Magnolia stellata (star magnolia) which bears white, star-like, fragrant flowers.

- Plant purple-blue forms of the bulbous, large-flowered Dutch crocuses around the deciduous shrub Ribessanguineum 'King Edward VII' (flowering currant), with deep crimson flowers.

- Plant golden forms of Dutch crocuses around the evergreen shrub Ribes laurifolium, which bears pendent, greenish-yellow flowers. This combination is ideal for a large rock garden.

- Plant the bulbous, sky-blue-flowered Chionodoxa sardensis (glory of the snow) around the white-flowered Rhododendron 'Bric-a-brac' Group. This arrangement is also ideal for a rock garden.

Early summer
- In a corner of a woodland garden plant the fragrant, yellow-flowered Rhododendron luteum with a sea of bluebells in front.

- Plant the rose-purple flowered Erica australis (Spanish heath) in front of the yellow-flowered Ulexeuropaeus 'Plenus' (gorse). This is an ideal arrangement where the gorse is used as a boundary.

- Plant hardy, dwarf, deciduous azaleas in colors including red, pink, apricot and orange under the outer extremes of the branches of the yellow-flowered, deciduous tree, Laburnum anagyroides (golden rain).

Mid-summer
- Plant the bulbous Lilium candidum (Madonna lily), with white, trumpet-shaped flowers and golden pollen, with the hardy biennial Digitalis purpurea (foxglove). The addition of Meconopsiscambrica (Welsh poppy), a hardy perennial with bright¬yellow, poppy-like flowers, adds further color to the display.

- For a white-and-silver display, plant the bulbous, white-flowered Lilium regale among the hardy herbaceous perennial Artemisia ludoviciana, which reveals white leaves.

- Plant the deciduous shrub Hydrangea arborescens 'Grandiflora', with pure-white flowers borne in large, rounded clusters, in front of a hedge of Taxus baccata (yew). The dark green foliage of the yew highlights the hydrangea's flowers.

Colored berries
Berries bring a variation on the theme of color to gardens. Trees and shrubs that provide them include:
- Callicarpa bodinierigiraldii (beauty bush): Deciduous shrub with round, deep lilac to violet-blue berries in autumn.

- Gaultheria mucronata (previously known as Pernettya mucronata): Clusters of berries in autumn, in colors including rose, pink, white, purple and red.

- Pyracantha 'Watereri' (firethorn): Bright red berries from autumn to early spring. Other species and varieties have berries in orange-red, rich yellow and orange.

- Sorbus 'Joseph Rock': Creamy-yellow berries, maturing to amber, in autumn.

Late summer
- Plant the hardy herbaceous perennial Salvia x superba, with tall spires of rich, purple-blue flowers, in front of the bulbous Lilium henryi, with pale, apricot-yellow flowers with red spots.

- For a white-and-silver display, plant Yucca flaccida 'lvory with white, bell-shaped flowers and a distinctive 'architectural' appearance, in a sea of the silver-leaved Senecio cineraria 'White Diamond' or 'Silver Dust' (previously known as Cineraria maritima).

Autumn
- Plant the late-flowering Clematis flammula, a bushy and deciduous type with pure-white, sweetly-scented flowers to cover a low arch or trellis, with the herbaceous perennial Aconitum carmichaelii in front. This monkshood (previously and still better known as A wilsonii) displays pyramids of amethyst-blue flowers. 'Barker's Variety' has deep blue flowers.

- Plant Sedum spectabile (ice plant), which has pink flowers that assume a mauve tinge in autumn, with the bulbous Colchicumspeciosum (autumn crocus). This crocus has rose-purple, goblet-shaped flowers that appear before its leaves.