"Winter greenery"

During the winter months, I really appreciate the evergreen shrubs which give structure to my garden.
Sunday, 14 June 2009     

Murraya paniculata can be used for hedges and topiary

Today was a bleak winter's day in Sydney, and as the last of the autumn leaves flutter to the ground and many of my semi-tropical plants begin to look rather tatty, I find myself craving the comfort of evergreen shrubs that hold their good looks through the colder months. I remember too the value of the colour green. Without a distracting plethora of flowers in winter, the need for enduring green structure in the garden becomes much more apparent. A satisfying framework of evergreen shrubs or trees, hedges and screens can provide this, and can be used to enclose the boundaries of the garden and create internal divisions within it. In winter I am reminded that these are the fundamental necessities of a garden, rather than boring concepts which hardly rate a second thought compared to the spectacle of beautiful flowers. Whilst such structure is most apparent in winter, when the garden is stripped bare of many of its trappings, its presence is still a strength when the garden is more completely clothed in spring and summer, as it is a strong underlying framework which usually holds a successful garden together in an aesthetically pleasing way, rather than the number or variety of plants which the garden contains. I like the contrast of a strong garden architecture against the exuberant profusion of flowering plants which have a looser form, such as many of my warm-climate shrubby perennials.

We are fortunate that in Sydney's mild climate, a wide variety of evergreen shrubs flourish and retain their shape and their foliage through winter to furnish our gardens. These plants come from many sources. Almost all our native shrubs are evergreen, and include the more subdued greens of Grevillea, Westringia and Callistemon, for example, as well as the more vibrantly green, lush-leaved rainforest specimens such as lilly pilly (Syzygium) cultivars. The shrubby lilly pillies have dense growth and can be pruned quite heavily to form them into hedges or shapes. Many of them have prettily coloured new growth in spring.

Most glossy-leafed warm-climate exotic shrubs - such as Murraya paniculata (ht 3m), Rondeletia amoena (ht 3m), Xylosma japonicum (ht 2.5-3m) and Mackaya bella (ht 2-3m) - look handsome all year round and lend themselves to being used as informal screens, hedges or clipped shapes. Mackaya bella is particularly useful as it will grow in shaded gardens. Most of these shrubs have the bonus of flowers during the warmer months.

Shrubs from China and Japan are also important contributors of sleek greenery in our winter gardens - for example, Camellia sasanqua and Camellia japonica (ht to 4m), Sarcococca ruscifolia (ht 1m), Osmanthus fragrans (ht 3m) and Rhaphiolepis species (ht 1-2m). The tough Mediterranean shrubs laurustinus (Viburnum tinus, ht 2-3m) and myrtle (Myrtus communis, ht 3-4m) are also useful plants, the laurustinus producing its white lacy flowers in winter. Dwarf English box (Buxus sempervirens 'Suffruticosa') is often used to create low parterre-like patterns and miniature hedges, whereas Japanese box (Buxus microphylla var. japonica) is excellent in our climate for topiary shapes such as spheres and pyramids to give a structured element in gardens.

We probably should be more appreciative of these evergreen workhorses in our gardens: they do not have the glamour-girl charisma of showy perennials or spectacular bulbs, and the sight of them may never set your pulse racing, but they are essential for an effective garden. When spring comes around, reward them with some fertiliser and mulch, and keep them watered in dry weather. They will repay you for years to come.

 Reader Comments

1/3  Alida - 4566 (Zone:11A - Sub-tropical) Monday, 15 June 2009

What an uplifting article on this cold winter day! Thanks Deirdre.

2/3  Sue - 2074 (Zone:10 - Warm Temperate) Tuesday, 16 June 2009

I agree and your formal patch displays it so nicely - it looks very inviting even on such a wintery day.

3/3  Margaret - 2122 (Zone:10 - Warm Temperate) Wednesday, 17 June 2009

I recognised your murraya hedge at once, and was inspired to make use of my son and have mine trimmed! Greenery certainly cheers one on a bleak wintery day! Margaret

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