Planting in a sunny site does not mean that one is restricted to drought tolerant plants careful and judicious watering until the new plants are established allows for a far wider choice and selection of colourful shrubs and trees. Adding good quantities of organic matter to the soil will also help plants to establish without too much stress.
Mediterranean plants such as Lavender, will positively thrive in a warm sunny site with the warmer spot activating the easily recognisable scent of this popular plant. Lilacs are another very attractive flowering shrub common to Southern Europe that love a sunny spot to bring out the best in both their flowers and the heady scent they produce. Russian Sage more commonly known as Perovskia Blue Spire is a very popular choice as it produces its pretty violet blue flowers late in summer giving colour when others are fading.
A sunny site planted with flowering shrubs alongside scented shrubs and flowers will act like a magnet to wildlife such as bees,butterflies and birds for the pollen and nectar these delightful plants produce. Sunny and dry areas do not necessarily mean that only small shrubs and plants can cope as there are quite a few trees with interest that can flourish in this area. Birch, Wild Crabapple, Eucalyptus and Magnolia are just a few of these popular trees that would add height and structure to a sunny spot.
There are also climbers such as Wisteria which can be grown up a sunny wall or trellis giving added interest to perhaps an unsightly or rather plain structure. Consistent watering is the only criteria to growing any plant in a sunny site as this is essential to them getting a good deep root system growing in their early years.