Why digging breeds need extra rhubarb protection
Australian Shepherds are natural diggers with strong paws and persistence—traits that make garden beds especially tempting. Rhubarb leaves pose an immediate threat because their oxalate content can overwhelm a dog's kidneys even in small amounts. Unlike casual browsers, your shepherd's digging habit means he might unearth and consume multiple leaves in one session, multiplying the danger.
Burying chicken wire twelve inches deep creates a physical barrier he can't easily bypass. Extend the fencing above ground by at least two feet, as these agile dogs can jump low obstacles. Check the perimeter weekly for new digging attempts, and consider planting safe, dog-friendly greens like wheatgrass in a separate area to satisfy his grazing instinct.
The stem risk for a 20 kg active dog
While stems contain fewer oxalates than leaves, your shepherd's size and energy level mean he could potentially eat a problematic quantity during unsupervised garden time. A single stem might only cause mild stomach upset, but several raw stems could deliver enough oxalates to require veterinary care—especially if he's eaten leaves earlier in the week.
Watch for subtle changes like increased water intake or reluctance to play, which can precede more severe kidney symptoms. If you see bite marks on stems, assume some ingestion occurred and monitor closely for the next 48 hours. Cooking doesn't eliminate the risk—baked goods with rhubarb should also be kept away from counter-surfing height.
When garden fencing isn't enough
Some determined diggers will work around barriers or find fallen leaves after windstorms. For these cases, train a solid "leave it" command using high-value treats away from the garden first. Spraying bitter apple deterrent on the lower leaves may help, though rain will require reapplication.
Create visual deterrents like garden flags near the rhubarb—many herding breeds are sensitive to unusual movement. If your shepherd has already sampled leaves, even without immediate symptoms, call your vet to discuss baseline kidney testing. Early bloodwork helps catch problems before they become emergencies.
Alternative activities for plant-loving shepherds
Redirect his digging instinct to a sandbox filled with hidden toys, placed far from the garden. Frozen carrot sticks or cucumber slices make safer chewing substitutes when you're outside together. For dogs who compulsively eat greenery, ask your vet about fiber supplements to reduce the behavior.
Keep a "rhubarb emergency kit" handy: a recent photo of your dog for size reference, your vet's after-hours number, and a sample of your garden's leaves (sealed in plastic) in case identification is needed. Remember—quick intervention matters more with oxalates than with many other plant toxins.
The full verdict, portion guidance and serving notes are collected on the Rhubarb food facts page.