Summer can be a tough time in gardens but it’s a lot more comfortable if your garden offers a shady oasis from the heat. With a bit of leafy shade the garden becomes somewhere to spend time playing, relaxing and eating. Planting trees around a home does more than provide shade. Trees lower the temperature indoors and out.
Summer is the season to assess where extra shade is needed in gardens to keep paving cool or to shade an outdoor seating area. Examples of trees that are both shady and attractive abound in mature local gardens, street plantings and parks and there are lots of options available at the garden centre.
For best shading, position shade trees on the north or western side of the property.
Height and spread
The spread of a tree as it matures is particularly important for shade and for planning. Knowing the width of a tree as it matures is vital to position a newly planted tree so it is away from structures and boundaries.
Where space is at a premium, there are many dwarf trees that suit compact spaces and summer is the time to seek them out. Ideally keep trees at least 5 metres from structures and avoid digging near services (Dial 1100 before you dig to check the location of these services at your place).
Deciduous or evergreen
The other vital decision to make about which tree to plant is to decide whether it is deciduous or evergreen. A deciduous tree is one that loses its leaves in autumn and winter – often after putting on a colourful display - and remains bare for several months and grows new leaves in spring. An evergreen tree is green year round. It does discard leaves but these leaves fall occasionally through out the year.
The benefit of a deciduous tree is that it allows the winter sun to shine through. Evergreen trees provide shade all year round.
Top shade-giving deciduous trees include ash, birch, jacarandas (these trees are deciduous in early spring and regain their leaves in late spring after flowering begins), maple, ornamental pear, deciduous spring-flowering magnolias, gleditsia, prunus and robinia.
Top evergreen shade trees for a large garden include flowering eucalypts (look for named varieties to avoid forest giants), evergreen magnolia and lillypillies including Acmena, Syzygium and Waterhousea.
Compact trees for summer shade
Shade is important for small spaces as well. While a shade sail or an umbrella can provide summer shade, the shade from a leafy tree feels cooler and can be more appealing and of course trees provide environmental benefits and offer a changing display through the year.
Even where a garden is tiny - perhaps a courtyard or deck – leafy shade is important. There are compact but spreading trees for a range of climates that can be under-pruned to provide space for seating in their shade. Many can also be grown in a large container where access to soil is restricted.
Here are top suggestions for small trees both native and exotic options. Look for named varieties to ensure that your selection grows to the desired height and spread.
Deciduous Cercis ‘Forest Pansy’, birch, crabapple, crepe myrtle (especially dwarf forms in the Indian Summer series), dwarf fruit trees including plum and nectarine, Japanese maple, fig, frangipani, magnolia and ornamental pear.
Evergreen Agonis flexuosa ‘Burgundy’, banksia, bay tree, camellia, citrus, dwarf flowering eucalypts including ‘Summer Red’, evergreen magnolias including ‘Little Gem' and ‘Teddy Bear’, feijoa, grevillea ‘Moonlight’ and ‘Flamingo’, loquat, olive, pittosporum, ‘Spartan’ juniper and Tristaniopsis ‘Luscious’.