Specifying Low Hedge Plants: Tips and what to avoid

“Low hedging” is one of the most commonly misunderstood elements in planting design.

Height is often noted, but density, growth rate, and maintenance response are left undefined. Sure, common forms of Murraya paniculata make a great low hedge. As long as you hedge them every few weeks!

The result of poor plant choices is predictable. Plants outgrow their intended height, open up over time, or require constant pruning which can completely blow out maintenance budgets. Often, it’s cheaper to rip them out and replace them with something more appropriate when you budget in total expenditure over years instead of per visit.

A successful low hedge is not just about selecting a plant that can be clipped into a particular shape. It is about selecting one that will consistently perform within the constraints of height, density, and maintenance cycles.

What do we mean by “hedge”?

The term hedge is used differently depending on context, and it is worth clarifying this upfront for specifiers.

In a European sense, a hedge is traditionally a linear boundary planting with a functional role. It may be mixed-species and either clipped or informally managed. Its purpose is often practical, such as defining property lines, containing stock, reducing wind, or supporting biodiversity. Visual uniformity is secondary to function and longevity.

In Australian landscape practice, a hedge is typically understood as a deliberately clipped planting defined by form and finish. It is most often single-species and used as a design element rather than a rural boundary. This includes formal screens, low borders, domes, boxes, and other topiary forms, where consistency, density, and clean lines are the priority. This is the definition we’re using for this article.

What defines a good low hedge

Predictable height range

The plant would ideally naturally sit close to the intended height. If it wants to be 3+ metres, forcing it to remain at 1m tall can create ongoing maintenance pressure.

Feel free to play with this principle as it’s not a hard-and-fast rule, but pay particular attention to fast-growing varieties that want to get much taller than you want them to. It’s easier to control the genetic destiny of a slower-growing plant than a fast-growing one.

Tight internodes and density

Dense growth from the outset reduces gaps and improves visual consistency. Consider whether you need your low hedging to form an actual low screen that blocks sightlines, or if you’re happy with a bit more sparsity. All of the varieties in this article are quite dense naturally.

Response to pruning

Not all species respond well to repeated clipping. Reliable hedge plants recover quickly and maintain density after pruning. Tip pruning during establishment generally helps shrubs become more bushy, but not all shrubs want to be maintained in a specific shape.

The term hedge usually refers to a clipped shape in Australia, but technically speaking, we can have naturalistic shaped hedges that are unclipped as well. Shelterbelts are one example, though they’re much taller than what we’re discussing here.

Pest and disease resistance

Low hedges are often used in repetition. Any weakness is amplified across the planting.

If you must use pest-prone plants, consider using them in a less structured and asymmetric style so that if any of them fail, they can be easily replaced by something else without ruining the whole garden’s aesthetic.

Key mistakes

• Selecting plants that significantly exceed the intended height
• Over-pruning species that are not suited to formal clipping
• Spacing too wide, leading to long-term gaps
• Treating all “hedging plants” as interchangeable

Recommended low hedging options

Candy Burst™

Callistemon viminalis ‘CNU06’ PBR Trade Name Candy Burst™

Compact and colourful, forming a tidy low hedge with dense branching. Bright pink new growth and flowers add seasonal interest while maintaining structure with minimal pruning at around 1.2m. All of these Burst callistemons are ideal for low hedging where strong colour and a clean outline are needed, with good density for easy maintenance.

Fluro Burst™

Callistemon viminalis ‘CNU19’ PBR Trade Name Fluro Burst™

Tight habit with vivid fluorescent pink tones. Ideal for low hedging where strong colour and a clean outline are needed, with good density.

Icy Burst™

Callistemon viminalis ‘CNU01’ PBR Trade Name Icy Burst™

Compact and neat, with soft white flowers and fresh green growth. Holds a consistent fastigiate shape without pruning at all, great for tighter spaces with minimal pruning.

Snow Burst™

Callistemon viminalis ‘CNU07’ PBR Trade Name Snow Burst™

Dense, rounded habit suited to low formal hedging. Masses of white flowers provide contrast while maintaining a uniform, easy-care structure with or without pruning.

Sweet Burst™

Callistemon viminalis ‘CNU15’ PBR Trade Name Sweet Burst™

Low-growing with a compact form. Soft pink flower tones and fine foliage create a neat hedge with a dense natural habit.

Better John™

Callistemon viminalis ‘LJ1’ PBR Trade Name Better John™

Slow-growing and dense, making it easy to maintain as a low hedge. Reliable structure with reduced pruning compared to older forms. Glaucous foliage tones.

Green John™

Callistemon viminalis ‘LJ23’ PBR Trade Name Green John™

Slow-growing and dense, with clean green foliage. Red flowers add interest in spring. Both Better John™ and Green John™ bottlebrush plants are suitable for wet and dry cycles, such as in bioswales.

Scarlet Flame™

Callistemon viminalis ‘CC19’ PBR Trade Name Scarlet Flame™

Ultra-compact with tight branching and striking red new growth. Ideal for low hedging where a strong floral display is required.

Blue Horizon™

Eremophila glabra prostrate ‘EREM1’ PBR Trade Name Blue Horizon™

Low, spreading form with fine foliage that clips into soft, informal hedges. Excellent for dry sites where minimal upkeep is essential. Yellow and orange winter flowers.

Thriver™

Eremophila spp. ‘EREM01’ PBR Trade Name Thriver™

Adaptable and resilient, forming a compact shrub that can be shaped into informal low hedges. Performs across a wide range of climates. Great plant for natural shape with periodic coppicing.

Crimson Villea™

Grevillea ‘H16’ PBR Trade Name Crimson Villea™

Low and spreading with dense coverage, suitable for informal and formal low hedging, especially domes. Red flowers provide strong visual impact with minimal to no pruning required, depending on how formal the design is.

Meema™

Hardenbergia violacea ‘HB1’ PBR Trade Name Meema™

Compact, shrubby habit that holds together well as a low hedge, as well as a clipped climber on mesh. Longer-lived than typical forms, with seasonal purple flowering.

Aussie Flat Bush™

Rhagodia spinescens ‘SAB01’ PBR Trade Name Aussie Flat Bush™

Low, dense, and naturally compact. Forms a soft hedge with strong weed suppression and minimal pruning.

Aussie Hedge Bush™

Rhagodia spinescens ‘SAB02’ PBR Trade Name Aussie Hedge Bush™

Faster growing and slightly taller than Aussie Flat Bush™ Rhagodia, so choose it for low-to-mid-sized hedging. Both Rhagodia options are tough and adaptable for drought-prone and coastal sites.

Goldie Box™

Westringia fruticosa ‘WES11’ PBR Trade Name Goldie Box™

Compact with golden variegation, adding contrast to low hedges. Holds shape well with light pruning.

Grey Box™

Westringia fruticosa ‘WES04’ PBR Trade Name Grey Box™

Dense and naturally rounded, ideal for neat low hedging. Grey-green tones suit contemporary palettes. Tolerates flooding.

Low Horizon™

Westringia fruticosa ‘WES06’ PBR Trade Name Low Horizon™

Ultra-compact and uniform, forming a very tight low hedge. Minimal pruning required to maintain structure.

Mundi™

Westringia fruticosa ‘WES05’ PBR Trade Name Mundi™

Low, but still taller than Low Horizon™ and White Mundi™ westringias. Dense coverage with a relaxed finish if left unpruned, though is underrated as a formally clipped low hedging plant. Genuine bioswale plant for wet and dry periods.

White Mundi™

Westringia fruticosa ‘WES09’ PBR Trade Name White Mundi™

Another low, spreading form with variegated foliage. Adds brightness while maintaining a compact edge. Great for containers and high visual areas.

Blue Gem™

Westringia fruticosa ‘WES03’ PBR Trade Name Blue Gem™

Compact with fine foliage and purple flowers. Suitable for low hedging with extended and prolific flowering.

Ozbreed Aussie Box™

Westringia fruticosa ‘WES08’ PBR Trade Name Ozbreed Aussie Box™

Dense, fine-textured growth ideal for classic low hedging. Clips cleanly and holds form with minimal effort. Your classic native Australian Buxus alternative.

Spacing guidance

Spacing determines how quickly the hedge becomes functional.

• Tight spacing delivers faster visual results and reduces weed ingress
• Wider spacing reduces upfront cost but increases establishment time

For commercial and public landscapes, tighter spacing is typically justified due to reduced maintenance and faster canopy closure. Sometimes, spacing at 2x the recommended density helps fill in space when tubestock is used, which helps plants establish a better root system.

As plants become too dense, you can thin every second plant.

Daniel’s Wrap

Low hedges perform well when they are specified with enough attention to detail. I hope that this article has helped take the mystery out of designing low hedging, and given you a few options to add to your palette.

For spacing and plant selection guidance, refer to Ozbreed’s Desktop Specification Guide.