A sortable reference for pruning timing, cut-back limits, and regrowth behaviour across 25 hedge species commonly grown in Australia.
đź“Ś Quick Reference
- Safe cut-back limit for almost all species: never remove more than one-third of total foliage in a single session.
- Reshoots from bare/old wood? If No, cuts must stay inside green growth — going into bare wood leaves a permanent hole (true for most conifers).
- New plantings: skip pruning entirely in Year 1 (root establishment); begin formative pruning in Year 2.
- Formal hedges (crisp geometric lines) generally need 3–4 trims/year. Informal hedges usually need 1–2.
- Flowering hedges are timed to after bloom, not to a fixed calendar month.
- Never prune during extreme heat, drought stress, deep frost, or active bird nesting season.
Sort/filter by climate zone, reshoot ability, or pruning frequency when importing into a Notion database.
| Species (Botanical) | Common Name | Climate Zone Fit | Best Time to Prune | Max Cut-Back | Reshoots from Bare Wood? | Formal Trim Frequency | Growth Rate | Notes |
|---|---|---|---|---|---|---|---|---|
| Buxus sempervirens | English Box | Temperate, cool | Late winter–early spring, light trims to autumn | Up to 1/3 | Yes | 2–4×/year | Slow–moderate | Classic formal hedge; dense shell, watch for box blight in humid areas |
| Murraya paniculata | Murraya / Orange Jessamine | Subtropical, warm temperate | After each flowering flush | 1/3–1/2 if overgrown | Yes | 3–4×/year | Fast | Trim from the top only to preserve side flowering |
| Syzygium australe | Lilly Pilly | Temperate–subtropical | Spring, after first growth flush | Up to 1/3 | Yes | 3–4×/year | Fast | Light trims every 6–8 weeks keep colourful new-leaf flushes |
| Photinia x fraseri | Photinia / Red Robin | Temperate | Spring and early autumn | Up to 1/3 | Yes | 2–3×/year | Fast | Grown partly for red new growth — avoid over-shaping it away |
| Prunus lusitanica | Portuguese Laurel | Temperate, cool | Late winter, before flowering | Up to 1/3 | Yes | 2Ă—/year | Moderate | Heavy cuts reduce the following season's flowering |
| Ligustrum ovalifolium | Privet | Temperate, subtropical | Spring–summer, avoid peak heat | Up to 1/2 | Yes | 3–4×/year | Fast | Vigorous regrowth; check local weed/invasive status before planting |
| Viburnum tinus | Laurustinus | Temperate, cool | Immediately after spring flowering | Up to 1/3 | Yes | 2×/year | Moderate | Flowering hedge — prune by bloom timing, not calendar |
| Escallonia spp. | Escallonia | Temperate, coastal | After flowering, late summer | Up to 1/3 | Yes | 2–3×/year | Moderate–fast | Very tolerant of coastal wind and salt |
| Pittosporum tenuifolium | Kohuhu | Temperate | Spring–early summer | Up to 1/3 | Yes | 2–3×/year | Moderate | Foliage hedge; avoid cutting in cold snaps as fresh cuts brown |
| Callistemon spp. | Bottlebrush | Most zones except deep frost | After flowering | Up to 1/3 | Limited on old wood | 2Ă—/year | Fast | Cut just below spent flower spikes to encourage denser regrowth |
| Westringia fruticosa | Coastal Rosemary | Coastal, dry, temperate | Spring and autumn | Up to 1/3 | Yes | 2–3×/year | Moderate | Very drought- and salt-tolerant informal or low hedge |
| Lonicera nitida | Box Honeysuckle | Temperate, cool | Spring through summer | Up to 1/3 | Yes | 3–5×/year | Fast | Fine foliage mimics box but needs more frequent trims |
| Camellia sasanqua | Sasanqua Camellia | Temperate, subtropical | Immediately after autumn/winter flowering | Up to 1/3 | Yes | 1–2×/year | Slow–moderate | Prune promptly post-bloom — buds for next season form early |
| Teucrium fruticans | Silver Germander | Dry, coastal, temperate | Spring and late summer | Up to 1/3 | Yes | 2–3×/year | Moderate | Silvery foliage; tolerates hard shaping well |
| Griselinia littoralis | Griselinia | Temperate, coastal | Late spring–early summer | Up to 1/3 | Yes | 2×/year | Moderate | Glossy leaves, good wind-break hedge for coastal gardens |
| Correa alba | Native Fuchsia | Coastal, temperate, native gardens | After flowering, light trims year-round | Up to 1/4 | Yes | 2–3×/year | Slow–moderate | Native flowering hedge; prefers lighter, more frequent cuts |
| Leptospermum spp. | Tea Tree | Coastal, most zones | After flowering, avoid deep frost windows | Up to 1/3 | Limited on old wood | 1–2×/year | Fast | Avoid cutting into bare wood — similar rule to conifers |
| Rosmarinus officinalis | Rosemary | Dry, Mediterranean climates | Spring and after flowering | Up to 1/3 | Limited on old wood | 2–3×/year | Moderate | Good low informal hedge; woody stems don't reshoot reliably |
| Acmena smithii | Lilly Pilly (Common) | Temperate–subtropical | Spring, after growth flush | Up to 1/3 | Yes | 3×/year | Fast | Popular fast-growing screening hedge |
| Waterhousea floribunda | Weeping Lilly Pilly | Subtropical, warm temperate | Spring–early summer | Up to 1/3 | Yes | 2–3×/year | Fast | Best as a taller screening hedge; needs more space than Syzygium |
| Thuja occidentalis | Conifer / Arborvitae | Cool, temperate | Late spring–early summer only | Up to 1/3, green growth only | No | 1–2×/year | Slow–moderate | Never cut into bare wood — it will not reshoot, leaving a permanent gap |
| Cupressus spp. (Leylandii-type) | Conifer Hedge | Cool, temperate | Late spring–early summer only | Up to 1/3, green growth only | No | 2–3×/year | Fast | Trim little and often; a hard cut into old wood is irreversible |
| Elaeagnus x ebbingei | Elaeagnus | Temperate, coastal | Late spring and early autumn | Up to 1/3 | Yes | 2×/year | Fast | Very wind- and salt-tolerant; can revert to plain green shoots — remove these |
| Viburnum odoratissimum | Sweet Viburnum | Subtropical, warm temperate | Spring–summer | Up to 1/3 | Yes | 2–3×/year | Fast | Popular fast screening hedge for QLD/northern NSW |
| Camellia japonica | Japanese Camellia | Temperate, cool | Immediately after spring flowering | Up to 1/4 | Yes | 1×/year | Slow | Light annual shaping only — heavy cuts sacrifice next year's blooms |
My hedge has a bare, hollow interior with green only on the outside — what happened? Classic symptom of letting the outer shell grow unchecked for years without interior light penetration. Reduce in stages over 2–3 seasons rather than cutting hard all at once, and taper the shape (narrower top, wider base) going forward.
I cut into bare wood on my conifer hedge and it's not regrowing — is it dead? Most conifers (Thuja, Cupressus, Leylandii-type) will not reshoot from bare wood. That section is permanent — the only fixes are training a nearby lateral branch across the gap or replacing that section of hedge.
Can I prune two different hedge species on the same schedule? No — timing should follow each species' bloom cycle and reshoot ability, not a single fixed date for the whole garden. See the table above for species-specific timing.
How do I know if I've over-pruned? Watch for sparse regrowth, yellowing, or dieback over the following season. Repeated heavy cuts without recovery time can permanently weaken sections of the plant, especially in species with limited bare-wood reshoot ability.
**What's the fastest-growing hedge species for screening in this list?**Ligustrum ovalifolium (Privet), Waterhousea floribunda, and Viburnum odoratissimum are the fastest growers here — useful for quick screening, but they also need the most frequent trims to hold a formal line.