Murraya (Murraya paniculata), also known as orange jasmine, is one of Sydney's favourite hedging plants. It grows quickly, clips cleanly and produces clusters of fragrant white flowers when allowed to mature. The key to a beautiful Murraya hedge is little-and-often trimming rather than heavy renovation cuts.
The best time to trim Murraya in Sydney is late spring and early autumn. A light trim after the spring flowering flush encourages a second burst of growth and keeps the hedge compact. Avoid hard cutting in winter when growth is slow, as the plant can look bare for months.
Use sharp hedge shears or a powered hedge trimmer with clean blades. Start by trimming the top flat, then work the sides down in smooth, sweeping strokes. Murraya responds well to tapering: make the base slightly wider than the top so sunlight reaches the lower branches and the hedge stays full from the ground up.
Feed after trimming with a balanced, slow-release fertiliser and water deeply if the weather is dry. Mulch around the roots to keep the soil cool and suppress weeds. With the right care, a Murraya hedge will stay dense, green and sweetly scented for years.
Tool hygiene matters more with Murraya than most people expect. The plant is susceptible to fungal leaf spot in humid Sydney summers, and dirty blades move spores from one section of hedge to the next. Wipe blades with methylated spirits between jobs, and never trim while the foliage is wet. If you are shaping a young hedge, hand shears give a cleaner cut on the larger leaves than a powered trimmer, which tends to shred them and leave browned edges for a week or two.
Feeding drives the density you are after. Murraya is a hungry citrus relative and responds strongly to a citrus or all-purpose fertiliser applied in early spring and again in late summer, watered in well. Yellowing between the leaf veins usually points to an iron or magnesium shortfall, common in Sydney's sandstone-derived soils and in beds that sit against alkaline concrete or render. A dose of iron chelate or Epsom salts, plus a mulch of composted organic matter, generally greens it back up within a month.
Plan the long-term shape from the start. Murraya can reach three to four metres if left alone, so decide on a working height about 20 cm below your target and trim to the same lines each time — the hedge builds a dense outer shell of twiggy growth that blocks light and keeps weeds down at the base. If your hedge is already too tall and woody, Murraya does reshoot from old wood, so a staged reduction over two seasons is usually safe. Note also that flowers form on new growth, so if the fragrance matters to you, skip one trim in spring and let a flush of blossom come through before shaping again.
