Kangaroos will strip a freshly planted sapling down to a stick overnight if it is not protected.

Revegetation projects across rural and peri-urban Australia lose thousands of seedlings each year to kangaroo and wallaby browsing. The damage is not random. Kangaroos target soft new growth, and young trees under 1.5 metres are the most vulnerable.

This guide covers which tree guards for kangaroos actually work, what height and material you need, and how to match the guard to your planting conditions.

Why Kangaroos Damage Young Trees

Kangaroos browse on soft leaf tips, bark and new shoots. A mature tree with hardened bark is generally safe, but seedlings and saplings under 1.5 metres sit right in the feeding zone.

The damage pattern varies by species. Eastern greys tend to strip foliage from the top down, while wallaroos and red kangaroos will push through lighter guards to reach the plant.

• Soft new growth is the primary target, especially eucalyptus, acacia and native shrub species
• Kangaroos also rub against young trunks during territorial behaviour, snapping stems
• Wallabies cause similar damage at lower heights, typically targeting plants under 800 mm
• Damage peaks in drought conditions when natural feed is scarce and planted areas become a food source

Unprotected revegetation sites in kangaroo territory can lose 40% to 60% of seedlings in the first 12 months. That is a significant cost in labour, materials and time that a well-chosen tree guard eliminates.

What Height Tree Guard Stops a Kangaroo

Standard 450 mm corflute guards are designed for rabbit and hare protection. They are too short for kangaroos. A kangaroo can reach over a 600 mm guard without effort.

For kangaroo and wallaby protection, the minimum effective height is 800 mm. If you are working in areas with large eastern greys or red kangaroos, 1,200 mm guards are the safer choice.

A large metal mesh tree guard at 1,200 mm gives full protection against eastern greys, reds and wallaroos. For wallaby-only sites, the medium metal mesh guard covers the job at a lower cost per unit.

Comparing Tree Guard Types for Kangaroo Protection

Not every tree guard material handles kangaroo pressure the same way. The choice comes down to three factors: rigidity, height availability and longevity in the field.

Metal Mesh Guards

Metal mesh is the strongest option for kangaroo-prone areas. The heavier gauge wire resists pushing, leaning and rubbing, and the open mesh allows airflow so the plant does not overheat.

• Best rigidity against physical pressure from large animals
• Open mesh prevents humidity buildup that can encourage fungal disease
• Heavier than plastic options, which means more stable in wind
• Lasts 5 to 10 years in the field before rusting out

Plastic Sleeves and Mesh

Plastic tree guard sleeves at 800 mm offer a lighter, lower-cost alternative. They work well for wallaby protection and moderate kangaroo pressure when staked properly.

• Lighter weight makes transport to remote planting sites easier
• Available in rolls for large-scale revegetation projects
• Less rigid than metal, so must be well-staked to resist pushing
• UV-stabilised options last 3 to 5 years outdoors

Corflute Guards

Corflute tree guards create a solid-walled microclimate that speeds early growth. They are popular for Landcare and council revegetation projects where rabbits are the main threat.

• Creates a warm, sheltered environment that accelerates seedling establishment
• Only available at 450 mm standard height, which is too short for kangaroos
• Solid walls block airflow, which can cause overheating in full sun locations
• Best suited to rabbit-only zones or as a first-stage guard before upgrading

How to Install Tree Guards for Kangaroo Protection

A well-chosen guard installed badly is worse than no guard at all. A kangaroo that pushes a loose guard onto the plant causes more damage than open browsing would.

Follow these steps for a secure installation:

1. Drive two hardwood or steel stakes at least 300 mm into the ground on opposite sides of the seedling
2. Slide the guard over the seedling before the stakes are fully tightened, so you do not damage the plant
3. Cable-tie or wire the guard to both stakes at the top, middle and base
4. Leave 50 mm clearance between the guard and the seedling stem to allow for trunk growth
5. Check the guard is vertical and not leaning, which creates a leverage point for animals

On sloped sites, face the open side of the guard away from the prevailing wind direction. This reduces the chance of the guard acting as a sail and pulling the stakes loose during storms.

According to Landcare Tasmania's tree guard comparison, the combination of guard height, material rigidity and secure staking determines success rates more than any single factor.

Choosing the Right Guard for Your Project Site

The right tree guard depends on what wildlife pressure exists, how many seedlings you are planting, and how accessible the site is for maintenance.

For council and Landcare projects planting 500 or more seedlings, ordering in bulk from a single supplier avoids the delays that come with splitting orders across multiple vendors. All Stake Supply guarantees complete delivery in one shipment, so your planting schedule stays on track.

Common Mistakes That Let Kangaroos Through

Even experienced revegetation crews make errors that leave seedlings exposed. These are the ones we see most often through product returns and reorders.

• Using 450 mm guards in kangaroo country: corflute guards are for rabbits, not kangaroos. A roo reaches straight over them.
• Single-staking: one stake gives the guard a pivot point. Kangaroos lean on it and the guard folds flat.
• Not checking guards after storms: wind loosens ties and shifts guards off-centre. A monthly check in the first year saves replacements.
• Removing guards too early: saplings need protection until the trunk hardens and the canopy is above browsing height, usually 18 to 24 months.
• Ignoring wallabies: smaller species cause the same damage at lower heights. Match the guard to every browsing animal on site.

The cheapest tree guard is the one that works first time. Replacing stripped seedlings and failed guards costs more than buying the correct height and material from the start.