Tree Planting & Transplanting SWMS

Tree planting and transplanting of advanced stock in residential and commercial landscapes combines several high-risk construction work triggers under WHS Regulation 2025 section 291. The work involves site assessment, root-zone excavation often exceeding 1.5 metres for mature stock, delivery and craning of rootballs that can weigh 500 kg to several tonnes, staking with timber or steel posts, mulching, and post-plant irrigation. Each phase introduces distinct hazards — buried services strikes, suspended load failures, crush injuries from swinging rootballs, and cumulative musculoskeletal damage from repetitive lifting. A Safe Work Method Statement is mandatory because the work involves excavation deeper than 1.5 m, mobile plant operating near workers, and the use of powered equipment in proximity to the public. The SWMS documents the hazard identification, the agreed hierarchy of controls, the consultation record with workers, and the supervisor sign-on required before each shift commences under WHS Reg 2025 s299–300.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Elimination — Specify smaller advanced stock (45L–100L) wherever the landscape design allows, removing the need for craning and deep root-zone excavation entirely.
2. 2Elimination — Complete Dial Before You Dig enquiry and on-site service location with electronic locator prior to any excavation, eliminating unknown buried service strike risk.
3. 3Substitution — Substitute mechanical tree spades or hydraulic tree dollies for manual carrying of rootballs over 25 kg, removing repetitive heavy manual handling exposure.
4. 4Substitution — Use lightweight composite stakes and pre-mixed bagged backfill under 20 kg in lieu of bulk soil shovelling and heavy hardwood stakes where structurally adequate.
5. 5Engineering — Batter or bench planting pits deeper than 1.5 m per AS 5488 and WHS Reg 2025 s306, or use trench shields when working at depth alongside the rootball.
6. 6Engineering — Establish a 1.5x boom-length crane exclusion zone with hard barriers, tagged lifting gear inspected per AS 2550.1, and certified dogger directing every lift.
7. 7Administrative — Conduct documented pre-start brief using this SWMS, confirm HRCW notification lodged, rotate workers off repetitive tasks every 45 minutes, and maintain spotter for all plant movement.
8. 8Administrative — Verify operator High Risk Work Licences (CN, CV, LF) and EWP/excavator competency, and prohibit lone working during lifts or excavation deeper than 1.2 m.
9. 9PPE — Issue AS/NZS 1801 hard hats, AS/NZS 2210.3 steel-capped boots, AS/NZS 1337.1 eye protection, cut-5 gloves, and hi-vis class D/N garments to AS/NZS 4602.1.
10. 10PPE — Provide P2 respirators for dry mulch and potting mix handling per AS/NZS 1715, chainsaw chaps to AS/NZS 4453.3, and Class 5 hearing protection during auger or saw use.

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

On a Tuesday morning at a new mixed-use development handover, a landscape foreman gathers four workers and the mobile crane dogger at the site shed for the pre-start brief. The crew is installing twelve 1000L advanced figs along the streetscape, each rootball weighing approximately 1.4 tonnes. The foreman opens this SWMS on a tablet and walks through the hazard register, pausing on the suspended load and excavation collapse entries. Workers identify that pit four sits within two metres of a marked telecommunications pit, so the locator is re-run and the pit is hand-dug for the final 300 mm to satisfy the engineering control. Each worker signs the consultation register on the SWMS, confirming they understand the 1.5x boom-length exclusion zone and the dogger's whistle signals. Mid-morning, an unexpected southerly gust exceeds the crane's wind cut-off threshold. The foreman halts the lift, returns to the SWMS, and documents the stop-work under the dynamic risk review section before re-briefing the crew on revised sequencing — completing the remaining pits manually with the tree dolly until winds drop. The SWMS sign-on sheet, dynamic review entries, and Dial Before You Dig receipts are filed in the site safety folder, providing the PCBU with a defensible compliance record should the regulator audit the project.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• AS 2550 — Cranes, hoists and winches; AS 1418 series

Frequently asked questions