Clean an outdoor rug by shaking and vacuuming both sides, hosing it down, scrubbing it with warm soapy water and a soft brush, then rinsing thoroughly and drying it flat in the sun. Most outdoor rugs are woven from polypropylene, a hard-wearing synthetic that handles a proper wash and even a gentle scrub without harm, which is why outdoor rugs are far more forgiving than the wool and natural-fibre rugs indoors. Check what yours is made of first, though, because natural-fibre and indoor-outdoor blends need gentler, low-moisture care.
What outdoor rugs are made of, and why it matters
The vast majority of outdoor rugs are polypropylene, sometimes labelled PP or olefin. It is a plastic-based fibre that does not absorb water, resists stains and mould, and tolerates sunlight far better than wool or cotton, which is exactly why it lives happily on a patio. Because it is not absorbent, it can be washed freely and dries quickly. Natural-fibre outdoor-look rugs made from jute, sisal or seagrass are a different story: they hate prolonged wetting and can brown or distort, so they need the gentler treatment in our sisal, jute and seagrass rug guide. If you are unsure which you have, see how to identify your rug type before you soak it.
How often should you clean an outdoor rug?
Shake or vacuum an outdoor rug weekly to keep grit from grinding into the weave, and give it a full wash every one to three months through the seasons it is in use. In Gauteng that rhythm follows the weather: the dry, dusty Highveld winter coats everything in fine grit, while the summer afternoon thunderstorms bring damp that, combined with fallen leaves and pollen, is what leads to mildew and green marks. A rug under a patio table also collects food and drink spills that are best rinsed off before they set.
How to clean an outdoor rug, step by step
- Shake and vacuum both sides. Lift the rug, shake out the loose grit, then vacuum the top and, importantly, the underside where dust and sand collect against the paving.
- Hose it down. Lay it on a clean, hard surface like a driveway and wet it through with a hose to flush out the loose dirt.
- Scrub with warm soapy water. Use a bucket of warm water with a little mild dishwashing liquid and a soft-bristled brush, working the whole rug in the direction of the weave. Polypropylene takes a gentle scrub without harm.
- Rinse thoroughly. Hose until the water runs clear, because leftover soap residue attracts dirt and leaves the rug feeling sticky.
- Dry it flat in the sun. Hang it over a rail or lay it flat to drain, and let it dry completely on both sides before it goes back down. See how to dry a rug properly after cleaning so you do not trap damp underneath.
Removing mould and mildew from an outdoor rug
Green or black speckling and a musty smell mean mildew, which takes hold when a rug stays damp under furniture or through a run of wet weather. Take the rug into the sun, brush off the surface growth once dry, then wash as above, paying attention to the underside. Sunlight itself is a strong natural help against mildew. The same problem and the same principles apply to the cushions on your patio furniture, covered in removing mould and mildew from outdoor cushions. If the mould keeps returning, the rug is not drying out between wettings, so improve the airflow underneath it.
Bird droppings, algae and stubborn marks
Rinse bird droppings off promptly and wash the spot, since they are acidic and unpleasant if left. A green algae film on a shaded, damp rug scrubs off with the soapy-water method once the rug is in the sun to dry. For the patio furniture nearby, our guides to cleaning outdoor cushions and cleaning a patio umbrella round out a full outdoor refresh.
The honest limit: fading and sun damage
Even a good outdoor rug fades over time, because ultraviolet light gradually breaks down the colour in the fibre. That fading is permanent, and no cleaning will bring the colour back, in the same way sun bleaching cannot be reversed on indoor carpet. Cleaning removes the dirt, mould and grime that make a rug look tired, but where the fibre itself has been bleached pale by the Highveld sun, that is wear, not soiling. We are always straight about that difference, see our honesty about what cleaning can and cannot fix.
What not to do
- Do not use bleach or harsh solvents, which can strip colour and weaken the fibre.
- Do not soak a natural-fibre rug such as jute or sisal, which browns and distorts when saturated.
- Do not put an outdoor rug back down damp, which traps moisture against the paving and breeds mildew.
- Do not leave spills, leaves or droppings to sit; a quick rinse prevents most stains and stops mildew starting.
When to call a professional
Most polypropylene patio rugs are happily cleaned at home. Bring in a professional when the rug is a natural-fibre or wool indoor-outdoor piece that must not be soaked, when mould keeps returning despite washing and drying, or when a large, heavy rug is simply awkward to handle and dry properly. Our rug cleaning service matches the method to the fibre, and our outdoor furniture cleaning can refresh the whole patio at once. Rug cleaning is priced by size, from R299 for a small rug up to R3,499 for an extra-large delicate piece, so you know the cost before we start.
Common questions
How do you clean an outdoor rug?
Shake and vacuum both sides, hose the rug down on a hard surface, then scrub it with warm water and a little mild dishwashing liquid using a soft brush in the direction of the weave. Rinse until the water runs clear, and dry it flat or over a rail in the sun, both sides, before putting it back down. Most polypropylene outdoor rugs handle this easily.
Can you hose down an outdoor rug?
Yes, if it is a synthetic polypropylene rug, which most outdoor rugs are, because the fibre does not absorb water and dries quickly. Hosing is the best way to flush out grit and rinse away soap. Natural-fibre rugs made of jute, sisal or seagrass are the exception and should not be soaked, as prolonged wetting makes them brown and distort.
How do you get mould off an outdoor rug?
Move the rug into direct sunlight, let it dry, then brush off the surface mould and wash the rug with warm soapy water and a soft brush, treating the underside as well. Rinse and dry it fully in the sun before returning it, since sunlight helps kill mildew. If the mould keeps coming back, the rug is staying damp underneath and needs better airflow beneath it.
For a rug that needs more than a home wash, see our rug cleaning and outdoor furniture cleaning services, or request a free quote.