Gardening With Tony
There are all sorts of reasons to control greenery that might otherwise get overgrown. Overgrown shrubbery and trees not only hides the architectural appeal of a home, but can also be a security risk by concealing windows and doors that burglars might break into, and by obscuring security lighting and street lights. Too much shade prevents lower plants from getting the sunlight they need.
The best way to limit overgrowth is by selecting plants that stay proportionate to their intended functions. For example, shrubbery below windows should naturally stay lower than the lower windowsills. Shade trees for areas where views should stay open should have high branch structure and relatively bare trunks. Well, most of know that this does not always happen.
The options are limited for greenery that wants to get larger than it should. Obviously, it can be pruned regularly; but this may be more work than it is worth, and can cause disfigurement Some plants can be pruned less frequently if pruned more severely, but will be bare and potentially unsightly for quite a bit of time. Overgrown plants can alternatively be removed and replaced with plants that are more proportionate to intended functions.
An option that is not often considered is an 'updo'. Trees and large shrubbery that are obtrusive to views or lighting can be pruned up and over what they are being obtrusive to. For example, lower growth of large pittosporums that is covering low windows can be pruned away to expose bare inner trunks supporting higher growth. The lower trunks can be appealingly sculptural without being too concealing. This works nicely for large shrubbery like viburnum, bottlebrush, oleander, photinia and pineapple guava.
Street trees that interfere with street lights (or marquis on storefronts) may need to be updo pruned a few times for adequate clearance, but these procedures are much less work, are less disfiguring to the affected trees, and produce more appealing results than keeping trees down.
Highlight: Pittosporum eugenioides
Large shorn hedges or informal screens are the more popular functions of Pittosporum eugenioides. It works like a modern and more relaxed option to privet. What few garden enthusiasts know is that it can alternatively be allowed grow into a small tree, either as a standard (on a single trunk) or with multiple trunks. It grows rather efficiently to more than twenty feet tall and about half as broad while young, and as it matures, can eventually get about thirty feet tall and broad.
The glossy leaves have appealingly wavy margins and distinctively pale midribs. The slightly fragrant flowers are only pale yellow, and are not abundant among young trees. Big old trees often bloom enough in autumn to be pleasantly fragrant. Stems and foliage are lemony fragrant when pruned or shorn. However, the common name of 'lemonwood' (or tarata) is not so common locally for Pittosporum eugenioides.
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